/*
* window.c - the PuTTY(tel) main program, which runs a PuTTY terminal
* emulator and backend in a window.
*/

#include <stdio.h>
#include <stdlib.h>
#include <ctype.h>
#include <time.h>
#include <limits.h>
#include <assert.h>

#ifndef NO_MULTIMON
#define COMPILE_MULTIMON_STUBS
#endif

#define PUTTY_DO_GLOBALS	       /* actually _define_ globals */
#include "putty.h"
#include "terminal.h"
#include "storage.h"
#include "win_res.h"

#ifndef NO_MULTIMON
#include <multimon.h>
#endif

#include <imm.h>
#include <commctrl.h>
#include <richedit.h>
#include <mmsystem.h>

/* From MSDN: In the WM_SYSCOMMAND message, the four low-order bits of
* wParam are used by Windows, and should be masked off, so we shouldn't
* attempt to store information in them. Hence all these identifiers have
* the low 4 bits clear. Also, identifiers should < 0xF000. */

#define IDM_SHOWLOG   0x0010
#define IDM_NEWSESS   0x0020
#define IDM_DUPSESS   0x0030
#define IDM_RESTART   0x0040
#define IDM_RECONF    0x0050
#define IDM_CLRSB     0x0060
#define IDM_RESET     0x0070
#define IDM_HELP      0x0140
#define IDM_ABOUT     0x0150
#define IDM_SAVEDSESS 0x0160
#define IDM_COPYALL   0x0170
#define IDM_FULLSCREEN	0x0180
#define IDM_PASTE     0x0190
#define IDM_SPECIALSEP 0x0200

#define IDM_SPECIAL_MIN 0x0400
#define IDM_SPECIAL_MAX 0x0800

#define IDM_SAVED_MIN 0x1000
#define IDM_SAVED_MAX 0x5000
#define MENU_SAVED_STEP 16
/* Maximum number of sessions on saved-session submenu */
#define MENU_SAVED_MAX ((IDM_SAVED_MAX-IDM_SAVED_MIN) / MENU_SAVED_STEP)

#define WM_IGNORE_CLIP (WM_APP + 2)
#define WM_FULLSCR_ON_MAX (WM_APP + 3)
#define WM_AGENT_CALLBACK (WM_APP + 4)

/* Needed for Chinese support and apparently not always defined. */
#ifndef VK_PROCESSKEY
#define VK_PROCESSKEY 0xE5
#endif

/* Mouse wheel support. */
#ifndef WM_MOUSEWHEEL
#define WM_MOUSEWHEEL 0x020A	       /* not defined in earlier SDKs */
#endif
#ifndef WHEEL_DELTA
#define WHEEL_DELTA 120
#endif

static Mouse_Button translate_button(Mouse_Button button);
static LRESULT CALLBACK WndProc(HWND, UINT, WPARAM, LPARAM);
static int TranslateKey(UINT message, WPARAM wParam, LPARAM lParam,
						unsigned char *output);
static void cfgtopalette(void);
static void systopalette(void);
static void init_palette(void);
static void init_fonts(int, int);
static void another_font(int);
static void deinit_fonts(void);
static void set_input_locale(HKL);
static void update_savedsess_menu(void);
static void init_flashwindow(void);

static int is_full_screen(void);
static void make_full_screen(void);
static void clear_full_screen(void);
static void flip_full_screen(void);

/* Window layout information */
static void reset_window(int);
static int extra_width, extra_height;
static int font_width, font_height, font_dualwidth;
static int offset_width, offset_height;
static int was_zoomed = 0;
static int prev_rows, prev_cols;

static int pending_netevent = 0;
static WPARAM pend_netevent_wParam = 0;
static LPARAM pend_netevent_lParam = 0;
static void enact_pending_netevent(void);
static void flash_window(int mode);
static void sys_cursor_update(void);
static int is_shift_pressed(void);
static int get_fullscreen_rect(RECT * ss);

static int caret_x = -1, caret_y = -1;

static int kbd_codepage;

static void *ldisc;
static Backend *back;
static void *backhandle;

static struct unicode_data ucsdata;
static int must_close_session, session_closed;
static int reconfiguring = FALSE;

static const struct telnet_special *specials = NULL;
static HMENU specials_menu = NULL;
static int n_specials = 0;

#define TIMING_TIMER_ID 1234
static long timing_next_time;

static struct {
	HMENU menu;
} popup_menus[2];
enum { SYSMENU, CTXMENU };
static HMENU savedsess_menu;

Config cfg;			       /* exported to windlg.c */

static struct sesslist sesslist;       /* for saved-session menu */

struct agent_callback {
	void (*callback)(void *, void *, int);
	void *callback_ctx;
	void *data;
	int len;
};

#define FONT_NORMAL 0
#define FONT_BOLD 1
#define FONT_UNDERLINE 2
#define FONT_BOLDUND 3
#define FONT_WIDE	0x04
#define FONT_HIGH	0x08
#define FONT_NARROW	0x10

#define FONT_OEM 	0x20
#define FONT_OEMBOLD 	0x21
#define FONT_OEMUND 	0x22
#define FONT_OEMBOLDUND 0x23

#define FONT_MAXNO 	0x2F
#define FONT_SHIFT	5
static HFONT fonts[FONT_MAXNO];
static LOGFONT lfont;
static int fontflag[FONT_MAXNO];
static enum {
	BOLD_COLOURS, BOLD_SHADOW, BOLD_FONT
} bold_mode;
static enum {
	UND_LINE, UND_FONT
} und_mode;
static int descent;

#define NCFGCOLOURS 22
#define NEXTCOLOURS 240
#define NALLCOLOURS (NCFGCOLOURS + NEXTCOLOURS)
static COLORREF colours[NALLCOLOURS];
static HPALETTE pal;
static LPLOGPALETTE logpal;
static RGBTRIPLE defpal[NALLCOLOURS];

static HBITMAP caretbm;

static int dbltime, lasttime, lastact;
static Mouse_Button lastbtn;

/* this allows xterm-style mouse handling. */
static int send_raw_mouse = 0;
static int wheel_accumulator = 0;

static int busy_status = BUSY_NOT;

static char *window_name, *icon_name;

static int compose_state = 0;

static UINT wm_mousewheel = WM_MOUSEWHEEL;

//TODO {{ 
void getLoginPassword(Config const *cfg,char const * loginname, char * loginpassword)
{
	int i;
	for (i=0;i<cfg->logininfo.length;i++)
	{
		if(strcmp(cfg->logininfo.username[i],loginname)==0)
		{
			sprintf(loginpassword,"%s",cfg->logininfo.password[i]);
		}
	}
}
void putLoginPassword(Config *cfg,char const * loginname, char const * loginpassword)
{
	int i;
	int hasLoginName=FALSE;
	for (i=0;i<cfg->logininfo.length;i++)
	{
		if(strcmp(cfg->logininfo.username[i],loginname)==0)
		{
			hasLoginName = TRUE;
			sprintf(cfg->logininfo.password[i],"%s",loginpassword);
		}
	}
	if (!hasLoginName)
	{
		sprintf(cfg->logininfo.username[i],"%s",loginname);
		sprintf(cfg->logininfo.password[i],"%s",loginpassword);
		cfg->logininfo.length++;
	}
}
//}}

/* Dummy routine, only required in plink. */
void ldisc_update(void *frontend, int echo, int edit)
{
}

char *get_ttymode(void *frontend, const char *mode)
{
	return term_get_ttymode(term, mode);
}

static void start_backend(void)
{
	const char *error;
	char msg[1024], *title;
	char *realhost;
	int i;

	/*
	* Select protocol. This is farmed out into a table in a
	* separate file to enable an ssh-free variant.
	*/
	back = NULL;
	for (i = 0; backends[i].backend != NULL; i++)
		if (backends[i].protocol == cfg.protocol) {
			back = backends[i].backend;
			break;
		}
		if (back == NULL) {
			char *str = dupprintf("%s Internal Error", appname);
			MessageBox(NULL, "Unsupported protocol number found",
				str, MB_OK | MB_ICONEXCLAMATION);
			sfree(str);
			cleanup_exit(1);
		}

		error = back->init(NULL, &backhandle, &cfg,
			cfg.host, cfg.port, &realhost, cfg.tcp_nodelay,
			cfg.tcp_keepalives);
		back->provide_logctx(backhandle, logctx);
		if (error) {
			char *str = dupprintf("%s Error", appname);
			sprintf(msg, "Unable to open connection to\n"
				"%.800s\n" "%s", cfg_dest(&cfg), error);
			MessageBox(NULL, msg, str, MB_ICONERROR | MB_OK);
			sfree(str);
			exit(0);
		}
		window_name = icon_name = NULL;
		if (*cfg.wintitle) {
			title = cfg.wintitle;
		} else {
			sprintf(msg, "%s - %s", realhost, appname);
			title = msg;
		}
		sfree(realhost);
		set_title(NULL, title);
		set_icon(NULL, title);

		/*
		* Connect the terminal to the backend for resize purposes.
		*/
		term_provide_resize_fn(term, back->size, backhandle);

		/*
		* Set up a line discipline.
		*/
		ldisc = ldisc_create(&cfg, term, back, backhandle, NULL);

		/*
		* Destroy the Restart Session menu item. (This will return
		* failure if it's already absent, as it will be the very first
		* time we call this function. We ignore that, because as long
		* as the menu item ends up not being there, we don't care
		* whether it was us who removed it or not!)
		*/
		for (i = 0; i < lenof(popup_menus); i++) {
			DeleteMenu(popup_menus[i].menu, IDM_RESTART, MF_BYCOMMAND);
		}

		must_close_session = FALSE;
		session_closed = FALSE;
}

static void close_session(void)
{
	char morestuff[100];
	int i;

	session_closed = TRUE;
	sprintf(morestuff, "%.70s (inactive)", appname);
	set_icon(NULL, morestuff);
	set_title(NULL, morestuff);

	if (ldisc) {
		ldisc_free(ldisc);
		ldisc = NULL;
	}
	if (back) {
		back->free(backhandle);
		backhandle = NULL;
		back = NULL;
		term_provide_resize_fn(term, NULL, NULL);
		update_specials_menu(NULL);
	}

	/*
	* Show the Restart Session menu item. Do a precautionary
	* delete first to ensure we never end up with more than one.
	*/
	for (i = 0; i < lenof(popup_menus); i++) {
		DeleteMenu(popup_menus[i].menu, IDM_RESTART, MF_BYCOMMAND);
		InsertMenu(popup_menus[i].menu, IDM_DUPSESS, MF_BYCOMMAND | MF_ENABLED,
			IDM_RESTART, "&Restart Session");
	}
}

int WINAPI WinMain(HINSTANCE inst, HINSTANCE prev, LPSTR cmdline, int show)
{
	WNDCLASS wndclass;
	MSG msg;
	int guess_width, guess_height;

	hinst = inst;
	hwnd = NULL;
	flags = FLAG_VERBOSE | FLAG_INTERACTIVE;

	sk_init();

	InitCommonControls();

	/* Ensure a Maximize setting in Explorer doesn't maximise the
	* config box. */
	defuse_showwindow();

	if (!init_winver())
	{
		char *str = dupprintf("%s Fatal Error", appname);
		MessageBox(NULL, "Windows refuses to report a version",
			str, MB_OK | MB_ICONEXCLAMATION);
		sfree(str);
		return 1;
	}

	/*
	* If we're running a version of Windows that doesn't support
	* WM_MOUSEWHEEL, find out what message number we should be
	* using instead.
	*/
	if (osVersion.dwMajorVersion < 4 ||
		(osVersion.dwMajorVersion == 4 && 
		osVersion.dwPlatformId != VER_PLATFORM_WIN32_NT))
		wm_mousewheel = RegisterWindowMessage("MSWHEEL_ROLLMSG");

	init_help();

	init_flashwindow();

	/*
	* Process the command line.
	*/
	{
		char *p;
		int got_host = 0;
		/* By default, we bring up the config dialog, rather than launching
		* a session. This gets set to TRUE if something happens to change
		* that (e.g., a hostname is specified on the command-line). */
		int allow_launch = FALSE;

		default_protocol = be_default_protocol;
		/* Find the appropriate default port. */
		{
			int i;
			default_port = 0; /* illegal */
			for (i = 0; backends[i].backend != NULL; i++)
				if (backends[i].protocol == default_protocol) {
					default_port = backends[i].backend->default_port;
					break;
				}
		}
		cfg.logtype = LGTYP_NONE;

		do_defaults(NULL, &cfg);

		p = cmdline;

		/*
		* Process a couple of command-line options which are more
		* easily dealt with before the line is broken up into
		* words. These are the soon-to-be-defunct @sessionname and
		* the internal-use-only &sharedmemoryhandle, neither of
		* which are combined with anything else.
		*/
		while (*p && isspace(*p))
			p++;
		if (*p == '@') {
			int i = strlen(p);
			while (i > 1 && isspace(p[i - 1]))
				i--;
			p[i] = '\0';
			do_defaults(p + 1, &cfg);
			if (!cfg_launchable(&cfg) && !do_config()) {
				cleanup_exit(0);
			}
			allow_launch = TRUE;    /* allow it to be launched directly */
		} else if (*p == '&') {
			/*
			* An initial & means we've been given a command line
			* containing the hex value of a HANDLE for a file
			* mapping object, which we must then extract as a
			* config.
			*/
			HANDLE filemap;
			Config *cp;
			if (sscanf(p + 1, "%p", &filemap) == 1 &&
				(cp = MapViewOfFile(filemap, FILE_MAP_READ,
				0, 0, sizeof(Config))) != NULL) {
					cfg = *cp;
					UnmapViewOfFile(cp);
					CloseHandle(filemap);
			} else if (!do_config()) {
				cleanup_exit(0);
			}
			allow_launch = TRUE;
		} else {
			/*
			* Otherwise, break up the command line and deal with
			* it sensibly.
			*/
			int argc, i;
			char **argv;

			split_into_argv(cmdline, &argc, &argv, NULL);

			for (i = 0; i < argc; i++) {
				char *p = argv[i];
				int ret;

				ret = cmdline_process_param(p, i+1<argc?argv[i+1]:NULL,
					1, &cfg);
				if (ret == -2) {
					cmdline_error("option \"%s\" requires an argument", p);
				} else if (ret == 2) {
					i++;	       /* skip next argument */
				} else if (ret == 1) {
					continue;	       /* nothing further needs doing */
				} else if (!strcmp(p, "-cleanup") ||
					!strcmp(p, "-cleanup-during-uninstall")) {
						/*
						* `putty -cleanup'. Remove all registry
						* entries associated with PuTTY, and also find
						* and delete the random seed file.
						*/
						char *s1, *s2;
						/* Are we being invoked from an uninstaller? */
						if (!strcmp(p, "-cleanup-during-uninstall")) {
							s1 = dupprintf("Remove saved sessions and random seed file?\n"
								"\n"
								"If you hit Yes, ALL Registry entries associated\n"
								"with %s will be removed, as well as the\n"
								"random seed file. THIS PROCESS WILL\n"
								"DESTROY YOUR SAVED SESSIONS.\n"
								"(This only affects the currently logged-in user.)\n"
								"\n"
								"If you hit No, uninstallation will proceed, but\n"
								"saved sessions etc will be left on the machine.",
								appname);
							s2 = dupprintf("%s Uninstallation", appname);
						} else {
							s1 = dupprintf("This procedure will remove ALL Registry entries\n"
								"associated with %s, and will also remove\n"
								"the random seed file. (This only affects the\n"
								"currently logged-in user.)\n"
								"\n"
								"THIS PROCESS WILL DESTROY YOUR SAVED SESSIONS.\n"
								"Are you really sure you want to continue?",
								appname);
							s2 = dupprintf("%s Warning", appname);
						}
						if (message_box(s1, s2,
							MB_YESNO | MB_ICONWARNING | MB_DEFBUTTON2,
							HELPCTXID(option_cleanup)) == IDYES) {
								cleanup_all();
						}
						sfree(s1);
						sfree(s2);
						exit(0);
				} else if (!strcmp(p, "-pgpfp")) {
					pgp_fingerprints();
					exit(1);
				} else if (*p != '-') {
					char *q = p;
					if (got_host) {
						/*
						* If we already have a host name, treat
						* this argument as a port number. NB we
						* have to treat this as a saved -P
						* argument, so that it will be deferred
						* until it's a good moment to run it.
						*/
						int ret = cmdline_process_param("-P", p, 1, &cfg);
						assert(ret == 2);
					} else if (!strncmp(q, "telnet:", 7)) {
						/*
						* If the hostname starts with "telnet:",
						* set the protocol to Telnet and process
						* the string as a Telnet URL.
						*/
						char c;

						q += 7;
						if (q[0] == '/' && q[1] == '/')
							q += 2;
						cfg.protocol = PROT_TELNET;
						p = q;
						while (*p && *p != ':' && *p != '/')
							p++;
						c = *p;
						if (*p)
							*p++ = '\0';
						if (c == ':')
							cfg.port = atoi(p);
						else
							cfg.port = -1;
						strncpy(cfg.host, q, sizeof(cfg.host) - 1);
						cfg.host[sizeof(cfg.host) - 1] = '\0';
						got_host = 1;
					} else {
						/*
						* Otherwise, treat this argument as a host
						* name.
						*/
						while (*p && !isspace(*p))
							p++;
						if (*p)
							*p++ = '\0';
						strncpy(cfg.host, q, sizeof(cfg.host) - 1);
						cfg.host[sizeof(cfg.host) - 1] = '\0';
						got_host = 1;
					}
				} else {
					cmdline_error("unknown option \"%s\"", p);
				}
			}
		}

		cmdline_run_saved(&cfg);

		if (loaded_session || got_host)
			allow_launch = TRUE;

		if ((!allow_launch || !cfg_launchable(&cfg)) && !do_config()) {
			cleanup_exit(0);
		}

		/*
		* Trim leading whitespace off the hostname if it's there.
		*/
		{
			int space = strspn(cfg.host, " \t");
			memmove(cfg.host, cfg.host+space, 1+strlen(cfg.host)-space);
		}

		/* See if host is of the form user@host */
		if (cfg.host[0] != '\0') {
			char *atsign = strrchr(cfg.host, '@');
			/* Make sure we're not overflowing the user field */
			if (atsign) {
				if (atsign - cfg.host < sizeof cfg.username) {
					strncpy(cfg.username, cfg.host, atsign - cfg.host);
					cfg.username[atsign - cfg.host] = '\0';
				}
				memmove(cfg.host, atsign + 1, 1 + strlen(atsign + 1));
			}
		}

		/*
		* Trim a colon suffix off the hostname if it's there. In
		* order to protect IPv6 address literals against this
		* treatment, we do not do this if there's _more_ than one
		* colon.
		*/
		{
			char *c = strchr(cfg.host, ':');

			if (c) {
				char *d = strchr(c+1, ':');
				if (!d)
					*c = '\0';
			}
		}

		/*
		* Remove any remaining whitespace from the hostname.
		*/
		{
			int p1 = 0, p2 = 0;
			while (cfg.host[p2] != '\0') {
				if (cfg.host[p2] != ' ' && cfg.host[p2] != '\t') {
					cfg.host[p1] = cfg.host[p2];
					p1++;
				}
				p2++;
			}
			cfg.host[p1] = '\0';
		}
	}

	/* Check for invalid Port number (i.e. zero) */
	if (cfg.port == 0) {
		char *str = dupprintf("%s Internal Error", appname);
		MessageBox(NULL, "Invalid Port Number",
			str, MB_OK | MB_ICONEXCLAMATION);
		sfree(str);
		cleanup_exit(1);
	}

	if (!prev) {
		wndclass.style = 0;
		wndclass.lpfnWndProc = WndProc;
		wndclass.cbClsExtra = 0;
		wndclass.cbWndExtra = 0;
		wndclass.hInstance = inst;
		wndclass.hIcon = LoadIcon(inst, MAKEINTRESOURCE(IDI_MAINICON));
		wndclass.hCursor = LoadCursor(NULL, IDC_IBEAM);
		wndclass.hbrBackground = NULL;
		wndclass.lpszMenuName = NULL;
		wndclass.lpszClassName = appname;

		RegisterClass(&wndclass);
	}

	memset(&ucsdata, 0, sizeof(ucsdata));

	cfgtopalette();

	/*
	* Guess some defaults for the window size. This all gets
	* updated later, so we don't really care too much. However, we
	* do want the font width/height guesses to correspond to a
	* large font rather than a small one...
	*/

	font_width = 10;
	font_height = 20;
	extra_width = 25;
	extra_height = 28;
	guess_width = extra_width + font_width * cfg.width;
	guess_height = extra_height + font_height * cfg.height;
	{
		RECT r;
		get_fullscreen_rect(&r);
		if (guess_width > r.right - r.left)
			guess_width = r.right - r.left;
		if (guess_height > r.bottom - r.top)
			guess_height = r.bottom - r.top;
	}

	{
		int winmode = WS_OVERLAPPEDWINDOW | WS_VSCROLL;
		int exwinmode = 0;
		if (!cfg.scrollbar)
			winmode &= ~(WS_VSCROLL);
		if (cfg.resize_action == RESIZE_DISABLED)
			winmode &= ~(WS_THICKFRAME | WS_MAXIMIZEBOX);
		if (cfg.alwaysontop)
			exwinmode |= WS_EX_TOPMOST;
		if (cfg.sunken_edge)
			exwinmode |= WS_EX_CLIENTEDGE;
		hwnd = CreateWindowEx(exwinmode, appname, appname,
			winmode, CW_USEDEFAULT, CW_USEDEFAULT,
			guess_width, guess_height,
			NULL, NULL, inst, NULL);
	}

	/*
	* Initialise the terminal. (We have to do this _after_
	* creating the window, since the terminal is the first thing
	* which will call schedule_timer(), which will in turn call
	* timer_change_notify() which will expect hwnd to exist.)
	*/
	term = term_init(&cfg, &ucsdata, NULL);
	logctx = log_init(NULL, &cfg);
	term_provide_logctx(term, logctx);
	term_size(term, cfg.height, cfg.width, cfg.savelines);

	/*
	* Initialise the fonts, simultaneously correcting the guesses
	* for font_{width,height}.
	*/
	init_fonts(0,0);

	/*
	* Correct the guesses for extra_{width,height}.
	*/
	{
		RECT cr, wr;
		GetWindowRect(hwnd, &wr);
		GetClientRect(hwnd, &cr);
		offset_width = offset_height = cfg.window_border;
		extra_width = wr.right - wr.left - cr.right + cr.left + offset_width*2;
		extra_height = wr.bottom - wr.top - cr.bottom + cr.top +offset_height*2;
	}

	/*
	* Resize the window, now we know what size we _really_ want it
	* to be.
	*/
	guess_width = extra_width + font_width * term->cols;
	guess_height = extra_height + font_height * term->rows;
	SetWindowPos(hwnd, NULL, 0, 0, guess_width, guess_height,
		SWP_NOMOVE | SWP_NOREDRAW | SWP_NOZORDER);

	/*
	* Set up a caret bitmap, with no content.
	*/
	{
		char *bits;
		int size = (font_width + 15) / 16 * 2 * font_height;
		bits = snewn(size, char);
		memset(bits, 0, size);
		caretbm = CreateBitmap(font_width, font_height, 1, 1, bits);
		sfree(bits);
	}
	CreateCaret(hwnd, caretbm, font_width, font_height);

	/*
	* Initialise the scroll bar.
	*/
	{
		SCROLLINFO si;

		si.cbSize = sizeof(si);
		si.fMask = SIF_ALL | SIF_DISABLENOSCROLL;
		si.nMin = 0;
		si.nMax = term->rows - 1;
		si.nPage = term->rows;
		si.nPos = 0;
		SetScrollInfo(hwnd, SB_VERT, &si, FALSE);
	}

	/*
	* Prepare the mouse handler.
	*/
	lastact = MA_NOTHING;
	lastbtn = MBT_NOTHING;
	dbltime = GetDoubleClickTime();

	/*
	* Set up the session-control options on the system menu.
	*/
	{
		HMENU m;
		int j;
		char *str;

		popup_menus[SYSMENU].menu = GetSystemMenu(hwnd, FALSE);
		popup_menus[CTXMENU].menu = CreatePopupMenu();
		AppendMenu(popup_menus[CTXMENU].menu, MF_ENABLED, IDM_PASTE, "&Paste");

		savedsess_menu = CreateMenu();
		get_sesslist(&sesslist, TRUE);
		update_savedsess_menu();

		for (j = 0; j < lenof(popup_menus); j++) {
			m = popup_menus[j].menu;

			AppendMenu(m, MF_SEPARATOR, 0, 0);
			AppendMenu(m, MF_ENABLED, IDM_SHOWLOG, "&Event Log");
			AppendMenu(m, MF_SEPARATOR, 0, 0);
			AppendMenu(m, MF_ENABLED, IDM_NEWSESS, "Ne&w Session...");
			AppendMenu(m, MF_ENABLED, IDM_DUPSESS, "&Duplicate Session");
			AppendMenu(m, MF_POPUP | MF_ENABLED, (UINT) savedsess_menu,
				"Sa&ved Sessions");
			AppendMenu(m, MF_ENABLED, IDM_RECONF, "Chan&ge Settings...");
			AppendMenu(m, MF_SEPARATOR, 0, 0);
			AppendMenu(m, MF_ENABLED, IDM_COPYALL, "C&opy All to Clipboard");
			AppendMenu(m, MF_ENABLED, IDM_CLRSB, "C&lear Scrollback");
			AppendMenu(m, MF_ENABLED, IDM_RESET, "Rese&t Terminal");
			AppendMenu(m, MF_SEPARATOR, 0, 0);
			AppendMenu(m, (cfg.resize_action == RESIZE_DISABLED) ?
MF_GRAYED : MF_ENABLED, IDM_FULLSCREEN, "&Full Screen");
			AppendMenu(m, MF_SEPARATOR, 0, 0);
			if (has_help())
				AppendMenu(m, MF_ENABLED, IDM_HELP, "&Help");
			str = dupprintf("&About %s", appname);
			AppendMenu(m, MF_ENABLED, IDM_ABOUT, str);
			sfree(str);
		}
	}

	start_backend();

	/*
	* Set up the initial input locale.
	*/
	set_input_locale(GetKeyboardLayout(0));

	/*
	* Finally show the window!
	*/
	ShowWindow(hwnd, show);
	SetForegroundWindow(hwnd);

	/*
	* Set the palette up.
	*/
	pal = NULL;
	logpal = NULL;
	init_palette();

	term_set_focus(term, GetForegroundWindow() == hwnd);
	UpdateWindow(hwnd);

	while (1) {
		HANDLE *handles;
		int nhandles, n;

		handles = handle_get_events(&nhandles);

		n = MsgWaitForMultipleObjects(nhandles, handles, FALSE, INFINITE,
			QS_ALLINPUT);

		if ((unsigned)(n - WAIT_OBJECT_0) < (unsigned)nhandles) {
			handle_got_event(handles[n - WAIT_OBJECT_0]);
			sfree(handles);
			if (must_close_session)
				close_session();
		} else
			sfree(handles);

		while (PeekMessage(&msg, NULL, 0, 0, PM_REMOVE)) {
			if (msg.message == WM_QUIT)
				goto finished;	       /* two-level break */

			if (!(IsWindow(logbox) && IsDialogMessage(logbox, &msg)))
				DispatchMessage(&msg);
			/* Send the paste buffer if there's anything to send */
			term_paste(term);
			/* If there's nothing new in the queue then we can do everything
			* we've delayed, reading the socket, writing, and repainting
			* the window.
			*/
			if (must_close_session)
				close_session();
		}

		/* The messages seem unreliable; especially if we're being tricky */
		term_set_focus(term, GetForegroundWindow() == hwnd);

		if (pending_netevent)
			enact_pending_netevent();

		net_pending_errors();
	}

finished:
	cleanup_exit(msg.wParam);	       /* this doesn't return... */
	return msg.wParam;		       /* ... but optimiser doesn't know */
}

/*
* Clean up and exit.
*/
void cleanup_exit(int code)
{
	/*
	* Clean up.
	*/
	deinit_fonts();
	sfree(logpal);
	if (pal)
		DeleteObject(pal);
	sk_cleanup();

	if (cfg.protocol == PROT_SSH) {
		random_save_seed();
#ifdef MSCRYPTOAPI
		crypto_wrapup();
#endif
	}
	shutdown_help();

	exit(code);
}

/*
* Set up, or shut down, an AsyncSelect. Called from winnet.c.
*/
char *do_select(SOCKET skt, int startup)
{
	int msg, events;
	if (startup) {
		msg = WM_NETEVENT;
		events = (FD_CONNECT | FD_READ | FD_WRITE |
			FD_OOB | FD_CLOSE | FD_ACCEPT);
	} else {
		msg = events = 0;
	}
	if (!hwnd)
		return "do_select(): internal error (hwnd==NULL)";
	if (p_WSAAsyncSelect(skt, hwnd, msg, events) == SOCKET_ERROR) {
		switch (p_WSAGetLastError()) {
case WSAENETDOWN:
	return "Network is down";
default:
	return "WSAAsyncSelect(): unknown error";
		}
	}
	return NULL;
}

/*
* Refresh the saved-session submenu from `sesslist'.
*/
static void update_savedsess_menu(void)
{
	int i;
	while (DeleteMenu(savedsess_menu, 0, MF_BYPOSITION)) ;
	/* skip sesslist.sessions[0] == Default Settings */
	for (i = 1;
		i < ((sesslist.nsessions <= MENU_SAVED_MAX+1) ? sesslist.nsessions
		: MENU_SAVED_MAX+1);
	i++)
		AppendMenu(savedsess_menu, MF_ENABLED,
		IDM_SAVED_MIN + (i-1)*MENU_SAVED_STEP,
		sesslist.sessions[i]);
}

/*
* Update the Special Commands submenu.
*/
void update_specials_menu(void *frontend)
{
	HMENU new_menu;
	int i, j;

	if (back)
		specials = back->get_specials(backhandle);
	else
		specials = NULL;

	if (specials) {
		/* We can't use Windows to provide a stack for submenus, so
		* here's a lame "stack" that will do for now. */
		HMENU saved_menu = NULL;
		int nesting = 1;
		new_menu = CreatePopupMenu();
		for (i = 0; nesting > 0; i++) {
			assert(IDM_SPECIAL_MIN + 0x10 * i < IDM_SPECIAL_MAX);
			switch (specials[i].code) {
case TS_SEP:
	AppendMenu(new_menu, MF_SEPARATOR, 0, 0);
	break;
case TS_SUBMENU:
	assert(nesting < 2);
	nesting++;
	saved_menu = new_menu; /* XXX lame stacking */
	new_menu = CreatePopupMenu();
	AppendMenu(saved_menu, MF_POPUP | MF_ENABLED,
		(UINT) new_menu, specials[i].name);
	break;
case TS_EXITMENU:
	nesting--;
	if (nesting) {
		new_menu = saved_menu; /* XXX lame stacking */
		saved_menu = NULL;
	}
	break;
default:
	AppendMenu(new_menu, MF_ENABLED, IDM_SPECIAL_MIN + 0x10 * i,
		specials[i].name);
	break;
			}
		}
		/* Squirrel the highest special. */
		n_specials = i - 1;
	} else {
		new_menu = NULL;
		n_specials = 0;
	}

	for (j = 0; j < lenof(popup_menus); j++) {
		if (specials_menu) {
			/* XXX does this free up all submenus? */
			DeleteMenu(popup_menus[j].menu, (UINT)specials_menu, MF_BYCOMMAND);
			DeleteMenu(popup_menus[j].menu, IDM_SPECIALSEP, MF_BYCOMMAND);
		}
		if (new_menu) {
			InsertMenu(popup_menus[j].menu, IDM_SHOWLOG,
				MF_BYCOMMAND | MF_POPUP | MF_ENABLED,
				(UINT) new_menu, "S&pecial Command");
			InsertMenu(popup_menus[j].menu, IDM_SHOWLOG,
				MF_BYCOMMAND | MF_SEPARATOR, IDM_SPECIALSEP, 0);
		}
	}
	specials_menu = new_menu;
}

static void update_mouse_pointer(void)
{
	LPTSTR curstype;
	int force_visible = FALSE;
	static int forced_visible = FALSE;
	switch (busy_status) {
case BUSY_NOT:
	if (send_raw_mouse)
		curstype = IDC_ARROW;
	else
		curstype = IDC_IBEAM;
	break;
case BUSY_WAITING:
	curstype = IDC_APPSTARTING; /* this may be an abuse */
	force_visible = TRUE;
	break;
case BUSY_CPU:
	curstype = IDC_WAIT;
	force_visible = TRUE;
	break;
default:
	assert(0);
	}
	{
		HCURSOR cursor = LoadCursor(NULL, curstype);
		SetClassLongPtr(hwnd, GCLP_HCURSOR, (LONG_PTR)cursor);
		SetCursor(cursor); /* force redraw of cursor at current posn */
	}
	if (force_visible != forced_visible) {
		/* We want some cursor shapes to be visible always.
		* Along with show_mouseptr(), this manages the ShowCursor()
		* counter such that if we switch back to a non-force_visible
		* cursor, the previous visibility state is restored. */
		ShowCursor(force_visible);
		forced_visible = force_visible;
	}
}

void set_busy_status(void *frontend, int status)
{
	busy_status = status;
	update_mouse_pointer();
}

/*
* set or clear the "raw mouse message" mode
*/
void set_raw_mouse_mode(void *frontend, int activate)
{
	activate = activate && !cfg.no_mouse_rep;
	send_raw_mouse = activate;
	update_mouse_pointer();
}

/*
* Print a message box and close the connection.
*/
void connection_fatal(void *frontend, char *fmt, ...)
{
	va_list ap;
	char *stuff, morestuff[100];

	va_start(ap, fmt);
	stuff = dupvprintf(fmt, ap);
	va_end(ap);
	sprintf(morestuff, "%.70s Fatal Error", appname);
	MessageBox(hwnd, stuff, morestuff, MB_ICONERROR | MB_OK);
	sfree(stuff);

	if (cfg.close_on_exit == FORCE_ON)
		PostQuitMessage(1);
	else {
		must_close_session = TRUE;
	}
}

/*
* Report an error at the command-line parsing stage.
*/
void cmdline_error(char *fmt, ...)
{
	va_list ap;
	char *stuff, morestuff[100];

	va_start(ap, fmt);
	stuff = dupvprintf(fmt, ap);
	va_end(ap);
	sprintf(morestuff, "%.70s Command Line Error", appname);
	MessageBox(hwnd, stuff, morestuff, MB_ICONERROR | MB_OK);
	sfree(stuff);
	exit(1);
}

/*
* Actually do the job requested by a WM_NETEVENT
*/
static void enact_pending_netevent(void)
{
	static int reentering = 0;
	extern int select_result(WPARAM, LPARAM);

	if (reentering)
		return;			       /* don't unpend the pending */

	pending_netevent = FALSE;

	reentering = 1;
	select_result(pend_netevent_wParam, pend_netevent_lParam);
	reentering = 0;
}

/*
* Copy the colour palette from the configuration data into defpal.
* This is non-trivial because the colour indices are different.
*/
static void cfgtopalette(void)
{
	int i;
	static const int ww[] = {
		256, 257, 258, 259, 260, 261,
		0, 8, 1, 9, 2, 10, 3, 11,
		4, 12, 5, 13, 6, 14, 7, 15
	};

	for (i = 0; i < 22; i++) {
		int w = ww[i];
		defpal[w].rgbtRed = cfg.colours[i][0];
		defpal[w].rgbtGreen = cfg.colours[i][1];
		defpal[w].rgbtBlue = cfg.colours[i][2];
	}
	for (i = 0; i < NEXTCOLOURS; i++) {
		if (i < 216) {
			int r = i / 36, g = (i / 6) % 6, b = i % 6;
			defpal[i+16].rgbtRed = r ? r * 40 + 55 : 0;
			defpal[i+16].rgbtGreen = g ? g * 40 + 55 : 0;
			defpal[i+16].rgbtBlue = b ? b * 40 + 55 : 0;
		} else {
			int shade = i - 216;
			shade = shade * 10 + 8;
			defpal[i+16].rgbtRed = defpal[i+16].rgbtGreen =
				defpal[i+16].rgbtBlue = shade;
		}
	}

	/* Override with system colours if appropriate */
	if (cfg.system_colour)
		systopalette();
}

/*
* Override bit of defpal with colours from the system.
* (NB that this takes a copy the system colours at the time this is called,
* so subsequent colour scheme changes don't take effect. To fix that we'd
* probably want to be using GetSysColorBrush() and the like.)
*/
static void systopalette(void)
{
	int i;
	static const struct { int nIndex; int norm; int bold; } or[] =
	{
		{ COLOR_WINDOWTEXT,	256, 257 }, /* Default Foreground */
		{ COLOR_WINDOW,		258, 259 }, /* Default Background */
		{ COLOR_HIGHLIGHTTEXT,	260, 260 }, /* Cursor Text */
		{ COLOR_HIGHLIGHT,	261, 261 }, /* Cursor Colour */
	};

	for (i = 0; i < (sizeof(or)/sizeof(or[0])); i++) {
		COLORREF colour = GetSysColor(or[i].nIndex);
		defpal[or[i].norm].rgbtRed =
			defpal[or[i].bold].rgbtRed = GetRValue(colour);
		defpal[or[i].norm].rgbtGreen =
			defpal[or[i].bold].rgbtGreen = GetGValue(colour);
		defpal[or[i].norm].rgbtBlue =
			defpal[or[i].bold].rgbtBlue = GetBValue(colour);
	}
}

/*
* Set up the colour palette.
*/
static void init_palette(void)
{
	int i;
	HDC hdc = GetDC(hwnd);
	if (hdc) {
		if (cfg.try_palette && GetDeviceCaps(hdc, RASTERCAPS) & RC_PALETTE) {
			/*
			* This is a genuine case where we must use smalloc
			* because the snew macros can't cope.
			*/
			logpal = smalloc(sizeof(*logpal)
				- sizeof(logpal->palPalEntry)
				+ NALLCOLOURS * sizeof(PALETTEENTRY));
			logpal->palVersion = 0x300;
			logpal->palNumEntries = NALLCOLOURS;
			for (i = 0; i < NALLCOLOURS; i++) {
				logpal->palPalEntry[i].peRed = defpal[i].rgbtRed;
				logpal->palPalEntry[i].peGreen = defpal[i].rgbtGreen;
				logpal->palPalEntry[i].peBlue = defpal[i].rgbtBlue;
				logpal->palPalEntry[i].peFlags = PC_NOCOLLAPSE;
			}
			pal = CreatePalette(logpal);
			if (pal) {
				SelectPalette(hdc, pal, FALSE);
				RealizePalette(hdc);
				SelectPalette(hdc, GetStockObject(DEFAULT_PALETTE), FALSE);
			}
		}
		ReleaseDC(hwnd, hdc);
	}
	if (pal)
		for (i = 0; i < NALLCOLOURS; i++)
			colours[i] = PALETTERGB(defpal[i].rgbtRed,
			defpal[i].rgbtGreen,
			defpal[i].rgbtBlue);
	else
		for (i = 0; i < NALLCOLOURS; i++)
			colours[i] = RGB(defpal[i].rgbtRed,
			defpal[i].rgbtGreen, defpal[i].rgbtBlue);
}

/*
* This is a wrapper to ExtTextOut() to force Windows to display
* the precise glyphs we give it. Otherwise it would do its own
* bidi and Arabic shaping, and we would end up uncertain which
* characters it had put where.
*/
static void exact_textout(HDC hdc, int x, int y, CONST RECT *lprc,
						  unsigned short *lpString, UINT cbCount,
						  CONST INT *lpDx, int opaque)
{
#ifdef __LCC__
	/*
	* The LCC include files apparently don't supply the
	* GCP_RESULTSW type, but we can make do with GCP_RESULTS
	* proper: the differences aren't important to us (the only
	* variable-width string parameter is one we don't use anyway).
	*/
	GCP_RESULTS gcpr;
#else
	GCP_RESULTSW gcpr;
#endif
	char *buffer = snewn(cbCount*2+2, char);
	char *classbuffer = snewn(cbCount, char);
	memset(&gcpr, 0, sizeof(gcpr));
	memset(buffer, 0, cbCount*2+2);
	memset(classbuffer, GCPCLASS_NEUTRAL, cbCount);

	gcpr.lStructSize = sizeof(gcpr);
	gcpr.lpGlyphs = (void *)buffer;
	gcpr.lpClass = (void *)classbuffer;
	gcpr.nGlyphs = cbCount;

	GetCharacterPlacementW(hdc, lpString, cbCount, 0, &gcpr,
		FLI_MASK | GCP_CLASSIN | GCP_DIACRITIC);

	ExtTextOut(hdc, x, y,
		ETO_GLYPH_INDEX | ETO_CLIPPED | (opaque ? ETO_OPAQUE : 0),
		lprc, buffer, cbCount, lpDx);
}

/*
* The exact_textout() wrapper, unfortunately, destroys the useful
* Windows `font linking' behaviour: automatic handling of Unicode
* code points not supported in this font by falling back to a font
* which does contain them. Therefore, we adopt a multi-layered
* approach: for any potentially-bidi text, we use exact_textout(),
* and for everything else we use a simple ExtTextOut as we did
* before exact_textout() was introduced.
*/
static void general_textout(HDC hdc, int x, int y, CONST RECT *lprc,
							unsigned short *lpString, UINT cbCount,
							CONST INT *lpDx, int opaque)
{
	int i, j, xp, xn;
	RECT newrc;

#ifdef FIXME_REMOVE_BEFORE_CHECKIN
	int k;
	debug(("general_textout: %d,%d", x, y));
	for(k=0;k<cbCount;k++)debug((" U+%04X", lpString[k]));
	debug(("\n           rect: [%d,%d %d,%d]", lprc->left, lprc->top, lprc->right, lprc->bottom));
	debug(("\n"));
#endif

	xp = xn = x;

	for (i = 0; i < (int)cbCount ;) {
		int rtl = is_rtl(lpString[i]);

		xn += lpDx[i];

		for (j = i+1; j < (int)cbCount; j++) {
			if (rtl != is_rtl(lpString[j]))
				break;
			xn += lpDx[j];
		}

		/*
		* Now [i,j) indicates a maximal substring of lpString
		* which should be displayed using the same textout
		* function.
		*/
		if (rtl) {
			newrc.left = lprc->left + xp - x;
			newrc.right = lprc->left + xn - x;
			newrc.top = lprc->top;
			newrc.bottom = lprc->bottom;
#ifdef FIXME_REMOVE_BEFORE_CHECKIN
			{
				int k;
				debug(("  exact_textout: %d,%d", xp, y));
				for(k=0;k<j-i;k++)debug((" U+%04X", lpString[i+k]));
				debug(("\n           rect: [%d,%d %d,%d]\n", newrc.left, newrc.top, newrc.right, newrc.bottom));
			}
#endif
			exact_textout(hdc, xp, y, &newrc, lpString+i, j-i, lpDx+i, opaque);
		} else {
#ifdef FIXME_REMOVE_BEFORE_CHECKIN
			{
				int k;
				debug(("  ExtTextOut   : %d,%d", xp, y));
				for(k=0;k<j-i;k++)debug((" U+%04X", lpString[i+k]));
				debug(("\n           rect: [%d,%d %d,%d]\n", newrc.left, newrc.top, newrc.right, newrc.bottom));
			}
#endif
			newrc.left = lprc->left + xp - x;
			newrc.right = lprc->left + xn - x;
			newrc.top = lprc->top;
			newrc.bottom = lprc->bottom;
			ExtTextOutW(hdc, xp, y, ETO_CLIPPED | (opaque ? ETO_OPAQUE : 0),
				&newrc, lpString+i, j-i, lpDx+i);
		}

		i = j;
		xp = xn;
	}

#ifdef FIXME_REMOVE_BEFORE_CHECKIN
	debug(("general_textout: done, xn=%d\n", xn));
#endif
	assert(xn - x == lprc->right - lprc->left);
}

/*
* Initialise all the fonts we will need initially. There may be as many as
* three or as few as one.  The other (poentially) twentyone fonts are done
* if/when they are needed.
*
* We also:
*
* - check the font width and height, correcting our guesses if
*   necessary.
*
* - verify that the bold font is the same width as the ordinary
*   one, and engage shadow bolding if not.
* 
* - verify that the underlined font is the same width as the
*   ordinary one (manual underlining by means of line drawing can
*   be done in a pinch).
*/
static void init_fonts(int pick_width, int pick_height)
{
	TEXTMETRIC tm;
	CPINFO cpinfo;
	int fontsize[3];
	int i;
	HDC hdc;
	int fw_dontcare, fw_bold;

	for (i = 0; i < FONT_MAXNO; i++)
		fonts[i] = NULL;

	bold_mode = cfg.bold_colour ? BOLD_COLOURS : BOLD_FONT;
	und_mode = UND_FONT;

	if (cfg.font.isbold) {
		fw_dontcare = FW_BOLD;
		fw_bold = FW_HEAVY;
	} else {
		fw_dontcare = FW_DONTCARE;
		fw_bold = FW_BOLD;
	}

	hdc = GetDC(hwnd);

	if (pick_height)
		font_height = pick_height;
	else {
		font_height = cfg.font.height;
		if (font_height > 0) {
			font_height =
				-MulDiv(font_height, GetDeviceCaps(hdc, LOGPIXELSY), 72);
		}
	}
	font_width = pick_width;

#define f(i,c,w,u) \
	fonts[i] = CreateFont (font_height, font_width, 0, 0, w, FALSE, u, FALSE, \
	c, OUT_DEFAULT_PRECIS, \
	CLIP_DEFAULT_PRECIS, FONT_QUALITY(cfg.font_quality), \
	FIXED_PITCH | FF_DONTCARE, cfg.font.name)

	f(FONT_NORMAL, cfg.font.charset, fw_dontcare, FALSE);

	SelectObject(hdc, fonts[FONT_NORMAL]);
	GetTextMetrics(hdc, &tm);

	GetObject(fonts[FONT_NORMAL], sizeof(LOGFONT), &lfont);

	if (pick_width == 0 || pick_height == 0) {
		font_height = tm.tmHeight;
		font_width = tm.tmAveCharWidth;
	}
	font_dualwidth = (tm.tmAveCharWidth != tm.tmMaxCharWidth);

#ifdef RDB_DEBUG_PATCH
	debug(23, "Primary font H=%d, AW=%d, MW=%d",
		tm.tmHeight, tm.tmAveCharWidth, tm.tmMaxCharWidth);
#endif

	{
		CHARSETINFO info;
		DWORD cset = tm.tmCharSet;
		memset(&info, 0xFF, sizeof(info));

		/* !!! Yes the next line is right */
		if (cset == OEM_CHARSET)
			ucsdata.font_codepage = GetOEMCP();
		else
			if (TranslateCharsetInfo ((DWORD *) cset, &info, TCI_SRCCHARSET))
				ucsdata.font_codepage = info.ciACP;
			else
				ucsdata.font_codepage = -1;

		GetCPInfo(ucsdata.font_codepage, &cpinfo);
		ucsdata.dbcs_screenfont = (cpinfo.MaxCharSize > 1);
	}

	f(FONT_UNDERLINE, cfg.font.charset, fw_dontcare, TRUE);

	/*
	* Some fonts, e.g. 9-pt Courier, draw their underlines
	* outside their character cell. We successfully prevent
	* screen corruption by clipping the text output, but then
	* we lose the underline completely. Here we try to work
	* out whether this is such a font, and if it is, we set a
	* flag that causes underlines to be drawn by hand.
	*
	* Having tried other more sophisticated approaches (such
	* as examining the TEXTMETRIC structure or requesting the
	* height of a string), I think we'll do this the brute
	* force way: we create a small bitmap, draw an underlined
	* space on it, and test to see whether any pixels are
	* foreground-coloured. (Since we expect the underline to
	* go all the way across the character cell, we only search
	* down a single column of the bitmap, half way across.)
	*/
	{
		HDC und_dc;
		HBITMAP und_bm, und_oldbm;
		int i, gotit;
		COLORREF c;

		und_dc = CreateCompatibleDC(hdc);
		und_bm = CreateCompatibleBitmap(hdc, font_width, font_height);
		und_oldbm = SelectObject(und_dc, und_bm);
		SelectObject(und_dc, fonts[FONT_UNDERLINE]);
		SetTextAlign(und_dc, TA_TOP | TA_LEFT | TA_NOUPDATECP);
		SetTextColor(und_dc, RGB(255, 255, 255));
		SetBkColor(und_dc, RGB(0, 0, 0));
		SetBkMode(und_dc, OPAQUE);
		ExtTextOut(und_dc, 0, 0, ETO_OPAQUE, NULL, " ", 1, NULL);
		gotit = FALSE;
		for (i = 0; i < font_height; i++) {
			c = GetPixel(und_dc, font_width / 2, i);
			if (c != RGB(0, 0, 0))
				gotit = TRUE;
		}
		SelectObject(und_dc, und_oldbm);
		DeleteObject(und_bm);
		DeleteDC(und_dc);
		if (!gotit) {
			und_mode = UND_LINE;
			DeleteObject(fonts[FONT_UNDERLINE]);
			fonts[FONT_UNDERLINE] = 0;
		}
	}

	if (bold_mode == BOLD_FONT) {
		f(FONT_BOLD, cfg.font.charset, fw_bold, FALSE);
	}
#undef f

	descent = tm.tmAscent + 1;
	if (descent >= font_height)
		descent = font_height - 1;

	for (i = 0; i < 3; i++) {
		if (fonts[i]) {
			if (SelectObject(hdc, fonts[i]) && GetTextMetrics(hdc, &tm))
				fontsize[i] = tm.tmAveCharWidth + 256 * tm.tmHeight;
			else
				fontsize[i] = -i;
		} else
			fontsize[i] = -i;
	}

	ReleaseDC(hwnd, hdc);

	if (fontsize[FONT_UNDERLINE] != fontsize[FONT_NORMAL]) {
		und_mode = UND_LINE;
		DeleteObject(fonts[FONT_UNDERLINE]);
		fonts[FONT_UNDERLINE] = 0;
	}

	if (bold_mode == BOLD_FONT &&
		fontsize[FONT_BOLD] != fontsize[FONT_NORMAL]) {
			bold_mode = BOLD_SHADOW;
			DeleteObject(fonts[FONT_BOLD]);
			fonts[FONT_BOLD] = 0;
	}
	fontflag[0] = fontflag[1] = fontflag[2] = 1;

	init_ucs(&cfg, &ucsdata);
}

static void another_font(int fontno)
{
	int basefont;
	int fw_dontcare, fw_bold;
	int c, u, w, x;
	char *s;

	if (fontno < 0 || fontno >= FONT_MAXNO || fontflag[fontno])
		return;

	basefont = (fontno & ~(FONT_BOLDUND));
	if (basefont != fontno && !fontflag[basefont])
		another_font(basefont);

	if (cfg.font.isbold) {
		fw_dontcare = FW_BOLD;
		fw_bold = FW_HEAVY;
	} else {
		fw_dontcare = FW_DONTCARE;
		fw_bold = FW_BOLD;
	}

	c = cfg.font.charset;
	w = fw_dontcare;
	u = FALSE;
	s = cfg.font.name;
	x = font_width;

	if (fontno & FONT_WIDE)
		x *= 2;
	if (fontno & FONT_NARROW)
		x = (x+1)/2;
	if (fontno & FONT_OEM)
		c = OEM_CHARSET;
	if (fontno & FONT_BOLD)
		w = fw_bold;
	if (fontno & FONT_UNDERLINE)
		u = TRUE;

	fonts[fontno] =
		CreateFont(font_height * (1 + !!(fontno & FONT_HIGH)), x, 0, 0, w,
		FALSE, u, FALSE, c, OUT_DEFAULT_PRECIS,
		CLIP_DEFAULT_PRECIS, FONT_QUALITY(cfg.font_quality),
		FIXED_PITCH | FF_DONTCARE, s);

	fontflag[fontno] = 1;
}

static void deinit_fonts(void)
{
	int i;
	for (i = 0; i < FONT_MAXNO; i++) {
		if (fonts[i])
			DeleteObject(fonts[i]);
		fonts[i] = 0;
		fontflag[i] = 0;
	}
}

void request_resize(void *frontend, int w, int h)
{
	int width, height;

	/* If the window is maximized supress resizing attempts */
	if (IsZoomed(hwnd)) {
		if (cfg.resize_action == RESIZE_TERM)
			return;
	}

	if (cfg.resize_action == RESIZE_DISABLED) return;
	if (h == term->rows && w == term->cols) return;

	/* Sanity checks ... */
	{
		static int first_time = 1;
		static RECT ss;

		switch (first_time) {
case 1:
	/* Get the size of the screen */
	if (get_fullscreen_rect(&ss))
		/* first_time = 0 */ ;
	else {
		first_time = 2;
		break;
	}
case 0:
	/* Make sure the values are sane */
	width = (ss.right - ss.left - extra_width) / 4;
	height = (ss.bottom - ss.top - extra_height) / 6;

	if (w > width || h > height)
		return;
	if (w < 15)
		w = 15;
	if (h < 1)
		h = 1;
		}
	}

	term_size(term, h, w, cfg.savelines);

	if (cfg.resize_action != RESIZE_FONT && !IsZoomed(hwnd)) {
		width = extra_width + font_width * w;
		height = extra_height + font_height * h;

		SetWindowPos(hwnd, NULL, 0, 0, width, height,
			SWP_NOACTIVATE | SWP_NOCOPYBITS |
			SWP_NOMOVE | SWP_NOZORDER);
	} else
		reset_window(0);

	InvalidateRect(hwnd, NULL, TRUE);
}

static void reset_window(int reinit) {
	/*
	* This function decides how to resize or redraw when the 
	* user changes something. 
	*
	* This function doesn't like to change the terminal size but if the
	* font size is locked that may be it's only soluion.
	*/
	int win_width, win_height;
	RECT cr, wr;

#ifdef RDB_DEBUG_PATCH
	debug((27, "reset_window()"));
#endif

	/* Current window sizes ... */
	GetWindowRect(hwnd, &wr);
	GetClientRect(hwnd, &cr);

	win_width  = cr.right - cr.left;
	win_height = cr.bottom - cr.top;

	if (cfg.resize_action == RESIZE_DISABLED) reinit = 2;

	/* Are we being forced to reload the fonts ? */
	if (reinit>1) {
#ifdef RDB_DEBUG_PATCH
		debug((27, "reset_window() -- Forced deinit"));
#endif
		deinit_fonts();
		init_fonts(0,0);
	}

	/* Oh, looks like we're minimised */
	if (win_width == 0 || win_height == 0)
		return;

	/* Is the window out of position ? */
	if ( !reinit && 
		(offset_width != (win_width-font_width*term->cols)/2 ||
		offset_height != (win_height-font_height*term->rows)/2) ){
			offset_width = (win_width-font_width*term->cols)/2;
			offset_height = (win_height-font_height*term->rows)/2;
			InvalidateRect(hwnd, NULL, TRUE);
#ifdef RDB_DEBUG_PATCH
			debug((27, "reset_window() -> Reposition terminal"));
#endif
	}

	if (IsZoomed(hwnd)) {
		/* We're fullscreen, this means we must not change the size of
		* the window so it's the font size or the terminal itself.
		*/

		extra_width = wr.right - wr.left - cr.right + cr.left;
		extra_height = wr.bottom - wr.top - cr.bottom + cr.top;

		if (cfg.resize_action != RESIZE_TERM) {
			if (  font_width != win_width/term->cols || 
				font_height != win_height/term->rows) {
					deinit_fonts();
					init_fonts(win_width/term->cols, win_height/term->rows);
					offset_width = (win_width-font_width*term->cols)/2;
					offset_height = (win_height-font_height*term->rows)/2;
					InvalidateRect(hwnd, NULL, TRUE);
#ifdef RDB_DEBUG_PATCH
					debug((25, "reset_window() -> Z font resize to (%d, %d)",
						font_width, font_height));
#endif
			}
		} else {
			if (  font_width * term->cols != win_width || 
				font_height * term->rows != win_height) {
					/* Our only choice at this point is to change the 
					* size of the terminal; Oh well.
					*/
					term_size(term, win_height/font_height, win_width/font_width,
						cfg.savelines);
					offset_width = (win_width-font_width*term->cols)/2;
					offset_height = (win_height-font_height*term->rows)/2;
					InvalidateRect(hwnd, NULL, TRUE);
#ifdef RDB_DEBUG_PATCH
					debug((27, "reset_window() -> Zoomed term_size"));
#endif
			}
		}
		return;
	}

	/* Hmm, a force re-init means we should ignore the current window
	* so we resize to the default font size.
	*/
	if (reinit>0) {
#ifdef RDB_DEBUG_PATCH
		debug((27, "reset_window() -> Forced re-init"));
#endif

		offset_width = offset_height = cfg.window_border;
		extra_width = wr.right - wr.left - cr.right + cr.left + offset_width*2;
		extra_height = wr.bottom - wr.top - cr.bottom + cr.top +offset_height*2;

		if (win_width != font_width*term->cols + offset_width*2 ||
			win_height != font_height*term->rows + offset_height*2) {

				/* If this is too large windows will resize it to the maximum
				* allowed window size, we will then be back in here and resize
				* the font or terminal to fit.
				*/
				SetWindowPos(hwnd, NULL, 0, 0, 
					font_width*term->cols + extra_width, 
					font_height*term->rows + extra_height,
					SWP_NOMOVE | SWP_NOZORDER);
		}

		InvalidateRect(hwnd, NULL, TRUE);
		return;
	}

	/* Okay the user doesn't want us to change the font so we try the 
	* window. But that may be too big for the screen which forces us
	* to change the terminal.
	*/
	if ((cfg.resize_action == RESIZE_TERM && reinit<=0) ||
		(cfg.resize_action == RESIZE_EITHER && reinit<0) ||
		reinit>0) {
			offset_width = offset_height = cfg.window_border;
			extra_width = wr.right - wr.left - cr.right + cr.left + offset_width*2;
			extra_height = wr.bottom - wr.top - cr.bottom + cr.top +offset_height*2;

			if (win_width != font_width*term->cols + offset_width*2 ||
				win_height != font_height*term->rows + offset_height*2) {

					static RECT ss;
					int width, height;

					get_fullscreen_rect(&ss);

					width = (ss.right - ss.left - extra_width) / font_width;
					height = (ss.bottom - ss.top - extra_height) / font_height;

					/* Grrr too big */
					if ( term->rows > height || term->cols > width ) {
						if (cfg.resize_action == RESIZE_EITHER) {
							/* Make the font the biggest we can */
							if (term->cols > width)
								font_width = (ss.right - ss.left - extra_width)
								/ term->cols;
							if (term->rows > height)
								font_height = (ss.bottom - ss.top - extra_height)
								/ term->rows;

							deinit_fonts();
							init_fonts(font_width, font_height);

							width = (ss.right - ss.left - extra_width) / font_width;
							height = (ss.bottom - ss.top - extra_height) / font_height;
						} else {
							if ( height > term->rows ) height = term->rows;
							if ( width > term->cols )  width = term->cols;
							term_size(term, height, width, cfg.savelines);
#ifdef RDB_DEBUG_PATCH
							debug((27, "reset_window() -> term resize to (%d,%d)",
								height, width));
#endif
						}
					}

					SetWindowPos(hwnd, NULL, 0, 0, 
						font_width*term->cols + extra_width, 
						font_height*term->rows + extra_height,
						SWP_NOMOVE | SWP_NOZORDER);

					InvalidateRect(hwnd, NULL, TRUE);
#ifdef RDB_DEBUG_PATCH
					debug((27, "reset_window() -> window resize to (%d,%d)",
						font_width*term->cols + extra_width,
						font_height*term->rows + extra_height));
#endif
			}
			return;
	}

	/* We're allowed to or must change the font but do we want to ?  */

	if (font_width != (win_width-cfg.window_border*2)/term->cols || 
		font_height != (win_height-cfg.window_border*2)/term->rows) {

			deinit_fonts();
			init_fonts((win_width-cfg.window_border*2)/term->cols, 
				(win_height-cfg.window_border*2)/term->rows);
			offset_width = (win_width-font_width*term->cols)/2;
			offset_height = (win_height-font_height*term->rows)/2;

			extra_width = wr.right - wr.left - cr.right + cr.left +offset_width*2;
			extra_height = wr.bottom - wr.top - cr.bottom + cr.top+offset_height*2;

			InvalidateRect(hwnd, NULL, TRUE);
#ifdef RDB_DEBUG_PATCH
			debug((25, "reset_window() -> font resize to (%d,%d)", 
				font_width, font_height));
#endif
	}
}

static void set_input_locale(HKL kl)
{
	char lbuf[20];

	GetLocaleInfo(LOWORD(kl), LOCALE_IDEFAULTANSICODEPAGE,
		lbuf, sizeof(lbuf));

	kbd_codepage = atoi(lbuf);
}

static void click(Mouse_Button b, int x, int y, int shift, int ctrl, int alt)
{
	int thistime = GetMessageTime();

	if (send_raw_mouse && !(cfg.mouse_override && shift)) {
		lastbtn = MBT_NOTHING;
		term_mouse(term, b, translate_button(b), MA_CLICK,
			x, y, shift, ctrl, alt);
		return;
	}

	if (lastbtn == b && thistime - lasttime < dbltime) {
		lastact = (lastact == MA_CLICK ? MA_2CLK :
			lastact == MA_2CLK ? MA_3CLK :
			lastact == MA_3CLK ? MA_CLICK : MA_NOTHING);
	} else {
		lastbtn = b;
		lastact = MA_CLICK;
	}
	if (lastact != MA_NOTHING)
		term_mouse(term, b, translate_button(b), lastact,
		x, y, shift, ctrl, alt);
	lasttime = thistime;
}

/*
* Translate a raw mouse button designation (LEFT, MIDDLE, RIGHT)
* into a cooked one (SELECT, EXTEND, PASTE).
*/
static Mouse_Button translate_button(Mouse_Button button)
{
	if (button == MBT_LEFT)
		return MBT_SELECT;
	if (button == MBT_MIDDLE)
		return cfg.mouse_is_xterm == 1 ? MBT_PASTE : MBT_EXTEND;
	if (button == MBT_RIGHT)
		return cfg.mouse_is_xterm == 1 ? MBT_EXTEND : MBT_PASTE;
	return 0;			       /* shouldn't happen */
}

static void show_mouseptr(int show)
{
	/* NB that the counter in ShowCursor() is also frobbed by
	* update_mouse_pointer() */
	static int cursor_visible = 1;
	if (!cfg.hide_mouseptr)	       /* override if this feature disabled */
		show = 1;
	if (cursor_visible && !show)
		ShowCursor(FALSE);
	else if (!cursor_visible && show)
		ShowCursor(TRUE);
	cursor_visible = show;
}

static int is_alt_pressed(void)
{
	BYTE keystate[256];
	int r = GetKeyboardState(keystate);
	if (!r)
		return FALSE;
	if (keystate[VK_MENU] & 0x80)
		return TRUE;
	if (keystate[VK_RMENU] & 0x80)
		return TRUE;
	return FALSE;
}

static int is_shift_pressed(void)
{
	BYTE keystate[256];
	int r = GetKeyboardState(keystate);
	if (!r)
		return FALSE;
	if (keystate[VK_SHIFT] & 0x80)
		return TRUE;
	return FALSE;
}

static int resizing;

void notify_remote_exit(void *fe)
{
	int exitcode;

	if (!session_closed &&
		(exitcode = back->exitcode(backhandle)) >= 0) {
			/* Abnormal exits will already have set session_closed and taken
			* appropriate action. */
			if (cfg.close_on_exit == FORCE_ON ||
				(cfg.close_on_exit == AUTO && exitcode != INT_MAX)) {
					PostQuitMessage(0);
			} else {
				must_close_session = TRUE;
				session_closed = TRUE;
				/* exitcode == INT_MAX indicates that the connection was closed
				* by a fatal error, so an error box will be coming our way and
				* we should not generate this informational one. */
				if (exitcode != INT_MAX)
					MessageBox(hwnd, "Connection closed by remote host",
					appname, MB_OK | MB_ICONINFORMATION);
			}
	}
}

void timer_change_notify(long next)
{
	long ticks = next - GETTICKCOUNT();
	if (ticks <= 0) ticks = 1;	       /* just in case */
	KillTimer(hwnd, TIMING_TIMER_ID);
	SetTimer(hwnd, TIMING_TIMER_ID, ticks, NULL);
	timing_next_time = next;
}

static LRESULT CALLBACK WndProc(HWND hwnd, UINT message,
								WPARAM wParam, LPARAM lParam)
{
	HDC hdc;
	static int ignore_clip = FALSE;
	static int need_backend_resize = FALSE;
	static int fullscr_on_max = FALSE;
	static UINT last_mousemove = 0;

	switch (message) {
case WM_TIMER:
	if ((UINT_PTR)wParam == TIMING_TIMER_ID) {
		long next;

		KillTimer(hwnd, TIMING_TIMER_ID);
		if (run_timers(timing_next_time, &next)) {
			timer_change_notify(next);
		} else {
		}
	}
	return 0;
case WM_CREATE:
	break;
case WM_CLOSE:
	{
		char *str;
		show_mouseptr(1);
		str = dupprintf("%s Exit Confirmation", appname);
		if (!cfg.warn_on_close || session_closed ||
			MessageBox(hwnd,
			"Are you sure you want to close this session?",
			str, MB_ICONWARNING | MB_OKCANCEL | MB_DEFBUTTON1)
			== IDOK)
			DestroyWindow(hwnd);
		sfree(str);
	}
	return 0;
case WM_DESTROY:
	show_mouseptr(1);
	PostQuitMessage(0);
	return 0;
case WM_INITMENUPOPUP:
	if ((HMENU)wParam == savedsess_menu) {
		/* About to pop up Saved Sessions sub-menu.
		* Refresh the session list. */
		get_sesslist(&sesslist, FALSE); /* free */
		get_sesslist(&sesslist, TRUE);
		update_savedsess_menu();
		return 0;
	}
	break;
case WM_COMMAND:
case WM_SYSCOMMAND:
	switch (wParam & ~0xF) {       /* low 4 bits reserved to Windows */
case IDM_SHOWLOG:
	showeventlog(hwnd);
	break;
case IDM_NEWSESS:
case IDM_DUPSESS:
case IDM_SAVEDSESS:
	{
		char b[2048];
		char c[30], *cl;
		int freecl = FALSE;
		BOOL inherit_handles;
		STARTUPINFO si;
		PROCESS_INFORMATION pi;
		HANDLE filemap = NULL;

		if (wParam == IDM_DUPSESS) {
			/*
			* Allocate a file-mapping memory chunk for the
			* config structure.
			*/
			SECURITY_ATTRIBUTES sa;
			Config *p;

			sa.nLength = sizeof(sa);
			sa.lpSecurityDescriptor = NULL;
			sa.bInheritHandle = TRUE;
			filemap = CreateFileMapping(INVALID_HANDLE_VALUE,
				&sa,
				PAGE_READWRITE,
				0, sizeof(Config), NULL);
			if (filemap && filemap != INVALID_HANDLE_VALUE) {
				p = (Config *) MapViewOfFile(filemap,
					FILE_MAP_WRITE,
					0, 0, sizeof(Config));
				if (p) {
					*p = cfg;  /* structure copy */
					UnmapViewOfFile(p);
				}
			}
			inherit_handles = TRUE;
			sprintf(c, "putty &%p", filemap);
			cl = c;
		} else if (wParam == IDM_SAVEDSESS) {
			unsigned int sessno = ((lParam - IDM_SAVED_MIN)
				/ MENU_SAVED_STEP) + 1;
			if (sessno < (unsigned)sesslist.nsessions) {
				char *session = sesslist.sessions[sessno];
				/* XXX spaces? quotes? "-load"? */
				cl = dupprintf("putty @%s", session);
				inherit_handles = FALSE;
				freecl = TRUE;
			} else
				break;
		} else /* IDM_NEWSESS */ {
			cl = NULL;
			inherit_handles = FALSE;
		}

		GetModuleFileName(NULL, b, sizeof(b) - 1);
		si.cb = sizeof(si);
		si.lpReserved = NULL;
		si.lpDesktop = NULL;
		si.lpTitle = NULL;
		si.dwFlags = 0;
		si.cbReserved2 = 0;
		si.lpReserved2 = NULL;
		CreateProcess(b, cl, NULL, NULL, inherit_handles,
			NORMAL_PRIORITY_CLASS, NULL, NULL, &si, &pi);

		if (filemap)
			CloseHandle(filemap);
		if (freecl)
			sfree(cl);
	}
	break;
case IDM_RESTART:
	if (!back) {
		logevent(NULL, "----- Session restarted -----");
		term_pwron(term, FALSE);
		start_backend();
	}

	break;
case IDM_RECONF:
	{
		Config prev_cfg;
		int init_lvl = 1;
		int reconfig_result;

		if (reconfiguring)
			break;
		else
			reconfiguring = TRUE;

		GetWindowText(hwnd, cfg.wintitle, sizeof(cfg.wintitle));
		prev_cfg = cfg;

		reconfig_result =
			do_reconfig(hwnd, back ? back->cfg_info(backhandle) : 0);
		reconfiguring = FALSE;
		if (!reconfig_result)
			break;

		{
			/* Disable full-screen if resizing forbidden */
			HMENU m = GetSystemMenu (hwnd, FALSE);
			EnableMenuItem(m, IDM_FULLSCREEN, MF_BYCOMMAND | 
				(cfg.resize_action == RESIZE_DISABLED)
				? MF_GRAYED : MF_ENABLED);
			/* Gracefully unzoom if necessary */
			if (IsZoomed(hwnd) &&
				(cfg.resize_action == RESIZE_DISABLED)) {
					ShowWindow(hwnd, SW_RESTORE);
			}
		}

		/* Pass new config data to the logging module */
		log_reconfig(logctx, &cfg);

		sfree(logpal);
		/*
		* Flush the line discipline's edit buffer in the
		* case where local editing has just been disabled.
		*/
		if (ldisc)
			ldisc_send(ldisc, NULL, 0, 0);
		if (pal)
			DeleteObject(pal);
		logpal = NULL;
		pal = NULL;
		cfgtopalette();
		init_palette();

		/* Pass new config data to the terminal */
		term_reconfig(term, &cfg);

		/* Pass new config data to the back end */
		if (back)
			back->reconfig(backhandle, &cfg);

		/* Screen size changed ? */
		if (cfg.height != prev_cfg.height ||
			cfg.width != prev_cfg.width ||
			cfg.savelines != prev_cfg.savelines ||
			cfg.resize_action == RESIZE_FONT ||
			(cfg.resize_action == RESIZE_EITHER && IsZoomed(hwnd)) ||
			cfg.resize_action == RESIZE_DISABLED)
			term_size(term, cfg.height, cfg.width, cfg.savelines);

		/* Enable or disable the scroll bar, etc */
		{
			LONG nflg, flag = GetWindowLongPtr(hwnd, GWL_STYLE);
			LONG nexflag, exflag =
				GetWindowLongPtr(hwnd, GWL_EXSTYLE);

			nexflag = exflag;
			if (cfg.alwaysontop != prev_cfg.alwaysontop) {
				if (cfg.alwaysontop) {
					nexflag |= WS_EX_TOPMOST;
					SetWindowPos(hwnd, HWND_TOPMOST, 0, 0, 0, 0,
						SWP_NOMOVE | SWP_NOSIZE);
				} else {
					nexflag &= ~(WS_EX_TOPMOST);
					SetWindowPos(hwnd, HWND_NOTOPMOST, 0, 0, 0, 0,
						SWP_NOMOVE | SWP_NOSIZE);
				}
			}
			if (cfg.sunken_edge)
				nexflag |= WS_EX_CLIENTEDGE;
			else
				nexflag &= ~(WS_EX_CLIENTEDGE);

			nflg = flag;
			if (is_full_screen() ?
				cfg.scrollbar_in_fullscreen : cfg.scrollbar)
				nflg |= WS_VSCROLL;
			else
				nflg &= ~WS_VSCROLL;

			if (cfg.resize_action == RESIZE_DISABLED ||
				is_full_screen())
				nflg &= ~WS_THICKFRAME;
			else
				nflg |= WS_THICKFRAME;

			if (cfg.resize_action == RESIZE_DISABLED)
				nflg &= ~WS_MAXIMIZEBOX;
			else
				nflg |= WS_MAXIMIZEBOX;

			if (nflg != flag || nexflag != exflag) {
				if (nflg != flag)
					SetWindowLongPtr(hwnd, GWL_STYLE, nflg);
				if (nexflag != exflag)
					SetWindowLongPtr(hwnd, GWL_EXSTYLE, nexflag);

				SetWindowPos(hwnd, NULL, 0, 0, 0, 0,
					SWP_NOACTIVATE | SWP_NOCOPYBITS |
					SWP_NOMOVE | SWP_NOSIZE | SWP_NOZORDER |
					SWP_FRAMECHANGED);

				init_lvl = 2;
			}
		}

		/* Oops */
		if (cfg.resize_action == RESIZE_DISABLED && IsZoomed(hwnd)) {
			force_normal(hwnd);
			init_lvl = 2;
		}

		set_title(NULL, cfg.wintitle);
		if (IsIconic(hwnd)) {
			SetWindowText(hwnd,
				cfg.win_name_always ? window_name :
				icon_name);
		}

		if (strcmp(cfg.font.name, prev_cfg.font.name) != 0 ||
			strcmp(cfg.line_codepage, prev_cfg.line_codepage) != 0 ||
			cfg.font.isbold != prev_cfg.font.isbold ||
			cfg.font.height != prev_cfg.font.height ||
			cfg.font.charset != prev_cfg.font.charset ||
			cfg.font_quality != prev_cfg.font_quality ||
			cfg.vtmode != prev_cfg.vtmode ||
			cfg.bold_colour != prev_cfg.bold_colour ||
			cfg.resize_action == RESIZE_DISABLED ||
			cfg.resize_action == RESIZE_EITHER ||
			(cfg.resize_action != prev_cfg.resize_action))
			init_lvl = 2;

		InvalidateRect(hwnd, NULL, TRUE);
		reset_window(init_lvl);
		net_pending_errors();
	}
	break;
case IDM_COPYALL:
	term_copyall(term);
	break;
case IDM_PASTE:
	term_do_paste(term);
	break;
case IDM_CLRSB:
	term_clrsb(term);
	break;
case IDM_RESET:
	term_pwron(term, TRUE);
	if (ldisc)
		ldisc_send(ldisc, NULL, 0, 0);
	break;
case IDM_ABOUT:
	showabout(hwnd);
	break;
case IDM_HELP:
	launch_help(hwnd, NULL);
	break;
case SC_MOUSEMENU:
	/*
	* We get this if the System menu has been activated
	* using the mouse.
	*/
	show_mouseptr(1);
	break;
case SC_KEYMENU:
	/*
	* We get this if the System menu has been activated
	* using the keyboard. This might happen from within
	* TranslateKey, in which case it really wants to be
	* followed by a `space' character to actually _bring
	* the menu up_ rather than just sitting there in
	* `ready to appear' state.
	*/
	show_mouseptr(1);	       /* make sure pointer is visible */
	if( lParam == 0 )
		PostMessage(hwnd, WM_CHAR, ' ', 0);
	break;
case IDM_FULLSCREEN:
	flip_full_screen();
	break;
default:
	if (wParam >= IDM_SAVED_MIN && wParam < IDM_SAVED_MAX) {
		SendMessage(hwnd, WM_SYSCOMMAND, IDM_SAVEDSESS, wParam);
	}
	if (wParam >= IDM_SPECIAL_MIN && wParam <= IDM_SPECIAL_MAX) {
		int i = (wParam - IDM_SPECIAL_MIN) / 0x10;
		/*
		* Ensure we haven't been sent a bogus SYSCOMMAND
		* which would cause us to reference invalid memory
		* and crash. Perhaps I'm just too paranoid here.
		*/
		if (i >= n_specials)
			break;
		if (back)
			back->special(backhandle, specials[i].code);
		net_pending_errors();
	}
	}
	break;

#define X_POS(l) ((int)(short)LOWORD(l))
#define Y_POS(l) ((int)(short)HIWORD(l))

#define TO_CHR_X(x) ((((x)<0 ? (x)-font_width+1 : (x))-offset_width) / font_width)
#define TO_CHR_Y(y) ((((y)<0 ? (y)-font_height+1: (y))-offset_height) / font_height)
case WM_LBUTTONDOWN:
case WM_MBUTTONDOWN:
case WM_RBUTTONDOWN:
case WM_LBUTTONUP:
case WM_MBUTTONUP:
case WM_RBUTTONUP:
	if (message == WM_RBUTTONDOWN &&
		((wParam & MK_CONTROL) || (cfg.mouse_is_xterm == 2))) {
			POINT cursorpos;

			show_mouseptr(1);	       /* make sure pointer is visible */
			GetCursorPos(&cursorpos);
			TrackPopupMenu(popup_menus[CTXMENU].menu,
				TPM_LEFTALIGN | TPM_TOPALIGN | TPM_RIGHTBUTTON,
				cursorpos.x, cursorpos.y,
				0, hwnd, NULL);
			break;
	}
	{
		int button, press;

		switch (message) {
case WM_LBUTTONDOWN:
	button = MBT_LEFT;
	press = 1;
	break;
case WM_MBUTTONDOWN:
	button = MBT_MIDDLE;
	press = 1;
	break;
case WM_RBUTTONDOWN:
	button = MBT_RIGHT;
	press = 1;
	break;
case WM_LBUTTONUP:
	button = MBT_LEFT;
	press = 0;
	break;
case WM_MBUTTONUP:
	button = MBT_MIDDLE;
	press = 0;
	break;
case WM_RBUTTONUP:
	button = MBT_RIGHT;
	press = 0;
	break;
default:
	button = press = 0;    /* shouldn't happen */
		}
		show_mouseptr(1);
		/*
		* Special case: in full-screen mode, if the left
		* button is clicked in the very top left corner of the
		* window, we put up the System menu instead of doing
		* selection.
		*/
		{
			char mouse_on_hotspot = 0;
			POINT pt;

			GetCursorPos(&pt);
#ifndef NO_MULTIMON
			{
				HMONITOR mon;
				MONITORINFO mi;

				mon = MonitorFromPoint(pt, MONITOR_DEFAULTTONULL);

				if (mon != NULL) {
					mi.cbSize = sizeof(MONITORINFO);
					GetMonitorInfo(mon, &mi);

					if (mi.rcMonitor.left == pt.x &&
						mi.rcMonitor.top == pt.y) {
							mouse_on_hotspot = 1;
					}
				}
			}
#else
			if (pt.x == 0 && pt.y == 0) {
				mouse_on_hotspot = 1;
			}
#endif
			if (is_full_screen() && press &&
				button == MBT_LEFT && mouse_on_hotspot) {
					SendMessage(hwnd, WM_SYSCOMMAND, SC_MOUSEMENU,
						MAKELPARAM(pt.x, pt.y));
					return 0;
			}
		}

		if (press) {
			click(button,
				TO_CHR_X(X_POS(lParam)), TO_CHR_Y(Y_POS(lParam)),
				wParam & MK_SHIFT, wParam & MK_CONTROL,
				is_alt_pressed());
			SetCapture(hwnd);
		} else {
			term_mouse(term, button, translate_button(button), MA_RELEASE,
				TO_CHR_X(X_POS(lParam)),
				TO_CHR_Y(Y_POS(lParam)), wParam & MK_SHIFT,
				wParam & MK_CONTROL, is_alt_pressed());
			ReleaseCapture();
		}
	}
	return 0;
case WM_MOUSEMOVE:
	{
		/*
		* Windows seems to like to occasionally send MOUSEMOVE
		* events even if the mouse hasn't moved. Don't unhide
		* the mouse pointer in this case.
		*/
		static WPARAM wp = 0;
		static LPARAM lp = 0;
		if (wParam != wp || lParam != lp ||
			last_mousemove != WM_MOUSEMOVE) {
				show_mouseptr(1);
				wp = wParam; lp = lParam;
				last_mousemove = WM_MOUSEMOVE;
		}
	}
	/*
	* Add the mouse position and message time to the random
	* number noise.
	*/
	noise_ultralight(lParam);

	if (wParam & (MK_LBUTTON | MK_MBUTTON | MK_RBUTTON) &&
		GetCapture() == hwnd) {
			Mouse_Button b;
			if (wParam & MK_LBUTTON)
				b = MBT_LEFT;
			else if (wParam & MK_MBUTTON)
				b = MBT_MIDDLE;
			else
				b = MBT_RIGHT;
			term_mouse(term, b, translate_button(b), MA_DRAG,
				TO_CHR_X(X_POS(lParam)),
				TO_CHR_Y(Y_POS(lParam)), wParam & MK_SHIFT,
				wParam & MK_CONTROL, is_alt_pressed());
	}
	return 0;
case WM_NCMOUSEMOVE:
	{
		static WPARAM wp = 0;
		static LPARAM lp = 0;
		if (wParam != wp || lParam != lp ||
			last_mousemove != WM_NCMOUSEMOVE) {
				show_mouseptr(1);
				wp = wParam; lp = lParam;
				last_mousemove = WM_NCMOUSEMOVE;
		}
	}
	noise_ultralight(lParam);
	break;
case WM_IGNORE_CLIP:
	ignore_clip = wParam;	       /* don't panic on DESTROYCLIPBOARD */
	break;
case WM_DESTROYCLIPBOARD:
	if (!ignore_clip)
		term_deselect(term);
	ignore_clip = FALSE;
	return 0;
case WM_PAINT:
	{
		PAINTSTRUCT p;

		HideCaret(hwnd);
		hdc = BeginPaint(hwnd, &p);
		if (pal) {
			SelectPalette(hdc, pal, TRUE);
			RealizePalette(hdc);
		}

		/*
		* We have to be careful about term_paint(). It will
		* set a bunch of character cells to INVALID and then
		* call do_paint(), which will redraw those cells and
		* _then mark them as done_. This may not be accurate:
		* when painting in WM_PAINT context we are restricted
		* to the rectangle which has just been exposed - so if
		* that only covers _part_ of a character cell and the
		* rest of it was already visible, that remainder will
		* not be redrawn at all. Accordingly, we must not
		* paint any character cell in a WM_PAINT context which
		* already has a pending update due to terminal output.
		* The simplest solution to this - and many, many
		* thanks to Hung-Te Lin for working all this out - is
		* not to do any actual painting at _all_ if there's a
		* pending terminal update: just mark the relevant
		* character cells as INVALID and wait for the
		* scheduled full update to sort it out.
		* 
		* I have a suspicion this isn't the _right_ solution.
		* An alternative approach would be to have terminal.c
		* separately track what _should_ be on the terminal
		* screen and what _is_ on the terminal screen, and
		* have two completely different types of redraw (one
		* for full updates, which syncs the former with the
		* terminal itself, and one for WM_PAINT which syncs
		* the latter with the former); yet another possibility
		* would be to have the Windows front end do what the
		* GTK one already does, and maintain a bitmap of the
		* current terminal appearance so that WM_PAINT becomes
		* completely trivial. However, this should do for now.
		*/
		term_paint(term, hdc, 
			(p.rcPaint.left-offset_width)/font_width,
			(p.rcPaint.top-offset_height)/font_height,
			(p.rcPaint.right-offset_width-1)/font_width,
			(p.rcPaint.bottom-offset_height-1)/font_height,
			!term->window_update_pending);

		if (p.fErase ||
			p.rcPaint.left  < offset_width  ||
			p.rcPaint.top   < offset_height ||
			p.rcPaint.right >= offset_width + font_width*term->cols ||
			p.rcPaint.bottom>= offset_height + font_height*term->rows)
		{
			HBRUSH fillcolour, oldbrush;
			HPEN   edge, oldpen;
			fillcolour = CreateSolidBrush (
				colours[ATTR_DEFBG>>ATTR_BGSHIFT]);
			oldbrush = SelectObject(hdc, fillcolour);
			edge = CreatePen(PS_SOLID, 0, 
				colours[ATTR_DEFBG>>ATTR_BGSHIFT]);
			oldpen = SelectObject(hdc, edge);

			/*
			* Jordan Russell reports that this apparently
			* ineffectual IntersectClipRect() call masks a
			* Windows NT/2K bug causing strange display
			* problems when the PuTTY window is taller than
			* the primary monitor. It seems harmless enough...
			*/
			IntersectClipRect(hdc,
				p.rcPaint.left, p.rcPaint.top,
				p.rcPaint.right, p.rcPaint.bottom);

			ExcludeClipRect(hdc, 
				offset_width, offset_height,
				offset_width+font_width*term->cols,
				offset_height+font_height*term->rows);

			Rectangle(hdc, p.rcPaint.left, p.rcPaint.top, 
				p.rcPaint.right, p.rcPaint.bottom);

			/* SelectClipRgn(hdc, NULL); */

			SelectObject(hdc, oldbrush);
			DeleteObject(fillcolour);
			SelectObject(hdc, oldpen);
			DeleteObject(edge);
		}
		SelectObject(hdc, GetStockObject(SYSTEM_FONT));
		SelectObject(hdc, GetStockObject(WHITE_PEN));
		EndPaint(hwnd, &p);
		ShowCaret(hwnd);
	}
	return 0;
case WM_NETEVENT:
	/* Notice we can get multiple netevents, FD_READ, FD_WRITE etc
	* but the only one that's likely to try to overload us is FD_READ.
	* This means buffering just one is fine.
	*/
	if (pending_netevent)
		enact_pending_netevent();

	pending_netevent = TRUE;
	pend_netevent_wParam = wParam;
	pend_netevent_lParam = lParam;
	if (WSAGETSELECTEVENT(lParam) != FD_READ)
		enact_pending_netevent();

	net_pending_errors();
	return 0;
case WM_SETFOCUS:
	term_set_focus(term, TRUE);
	CreateCaret(hwnd, caretbm, font_width, font_height);
	ShowCaret(hwnd);
	flash_window(0);	       /* stop */
	compose_state = 0;
	term_update(term);
	break;
case WM_KILLFOCUS:
	show_mouseptr(1);
	term_set_focus(term, FALSE);
	DestroyCaret();
	caret_x = caret_y = -1;	       /* ensure caret is replaced next time */
	term_update(term);
	break;
case WM_ENTERSIZEMOVE:
#ifdef RDB_DEBUG_PATCH
	debug((27, "WM_ENTERSIZEMOVE"));
#endif
	EnableSizeTip(1);
	resizing = TRUE;
	need_backend_resize = FALSE;
	break;
case WM_EXITSIZEMOVE:
	EnableSizeTip(0);
	resizing = FALSE;
#ifdef RDB_DEBUG_PATCH
	debug((27, "WM_EXITSIZEMOVE"));
#endif
	if (need_backend_resize) {
		term_size(term, cfg.height, cfg.width, cfg.savelines);
		InvalidateRect(hwnd, NULL, TRUE);
	}
	break;
case WM_SIZING:
	/*
	* This does two jobs:
	* 1) Keep the sizetip uptodate
	* 2) Make sure the window size is _stepped_ in units of the font size.
	*/
	if (cfg.resize_action != RESIZE_FONT && !is_alt_pressed()) {
		int width, height, w, h, ew, eh;
		LPRECT r = (LPRECT) lParam;

		if ( !need_backend_resize && cfg.resize_action == RESIZE_EITHER &&
			(cfg.height != term->rows || cfg.width != term->cols )) {
				/* 
				* Great! It seems that both the terminal size and the
				* font size have been changed and the user is now dragging.
				* 
				* It will now be difficult to get back to the configured
				* font size!
				*
				* This would be easier but it seems to be too confusing.

				term_size(term, cfg.height, cfg.width, cfg.savelines);
				reset_window(2);
				*/
				cfg.height=term->rows; cfg.width=term->cols;

				InvalidateRect(hwnd, NULL, TRUE);
				need_backend_resize = TRUE;
		}

		width = r->right - r->left - extra_width;
		height = r->bottom - r->top - extra_height;
		w = (width + font_width / 2) / font_width;
		if (w < 1)
			w = 1;
		h = (height + font_height / 2) / font_height;
		if (h < 1)
			h = 1;
		UpdateSizeTip(hwnd, w, h);
		ew = width - w * font_width;
		eh = height - h * font_height;
		if (ew != 0) {
			if (wParam == WMSZ_LEFT ||
				wParam == WMSZ_BOTTOMLEFT || wParam == WMSZ_TOPLEFT)
				r->left += ew;
			else
				r->right -= ew;
		}
		if (eh != 0) {
			if (wParam == WMSZ_TOP ||
				wParam == WMSZ_TOPRIGHT || wParam == WMSZ_TOPLEFT)
				r->top += eh;
			else
				r->bottom -= eh;
		}
		if (ew || eh)
			return 1;
		else
			return 0;
	} else {
		int width, height, w, h, rv = 0;
		int ex_width = extra_width + (cfg.window_border - offset_width) * 2;
		int ex_height = extra_height + (cfg.window_border - offset_height) * 2;
		LPRECT r = (LPRECT) lParam;

		width = r->right - r->left - ex_width;
		height = r->bottom - r->top - ex_height;

		w = (width + term->cols/2)/term->cols;
		h = (height + term->rows/2)/term->rows;
		if ( r->right != r->left + w*term->cols + ex_width)
			rv = 1;

		if (wParam == WMSZ_LEFT ||
			wParam == WMSZ_BOTTOMLEFT || wParam == WMSZ_TOPLEFT)
			r->left = r->right - w*term->cols - ex_width;
		else
			r->right = r->left + w*term->cols + ex_width;

		if (r->bottom != r->top + h*term->rows + ex_height)
			rv = 1;

		if (wParam == WMSZ_TOP ||
			wParam == WMSZ_TOPRIGHT || wParam == WMSZ_TOPLEFT)
			r->top = r->bottom - h*term->rows - ex_height;
		else
			r->bottom = r->top + h*term->rows + ex_height;

		return rv;
	}
	/* break;  (never reached) */
case WM_FULLSCR_ON_MAX:
	fullscr_on_max = TRUE;
	break;
case WM_MOVE:
	sys_cursor_update();
	break;
case WM_SIZE:
#ifdef RDB_DEBUG_PATCH
	debug((27, "WM_SIZE %s (%d,%d)",
		(wParam == SIZE_MINIMIZED) ? "SIZE_MINIMIZED":
		(wParam == SIZE_MAXIMIZED) ? "SIZE_MAXIMIZED":
		(wParam == SIZE_RESTORED && resizing) ? "to":
		(wParam == SIZE_RESTORED) ? "SIZE_RESTORED":
		"...",
		LOWORD(lParam), HIWORD(lParam)));
#endif
	if (wParam == SIZE_MINIMIZED)
		SetWindowText(hwnd,
		cfg.win_name_always ? window_name : icon_name);
	if (wParam == SIZE_RESTORED || wParam == SIZE_MAXIMIZED)
		SetWindowText(hwnd, window_name);
	if (wParam == SIZE_RESTORED)
		clear_full_screen();
	if (wParam == SIZE_MAXIMIZED && fullscr_on_max) {
		fullscr_on_max = FALSE;
		make_full_screen();
	}

	if (cfg.resize_action == RESIZE_DISABLED) {
		/* A resize, well it better be a minimize. */
		reset_window(-1);
	} else {

		int width, height, w, h;

		width = LOWORD(lParam);
		height = HIWORD(lParam);

		if (!resizing) {
			if (wParam == SIZE_MAXIMIZED && !was_zoomed) {
				was_zoomed = 1;
				prev_rows = term->rows;
				prev_cols = term->cols;
				if (cfg.resize_action == RESIZE_TERM) {
					w = width / font_width;
					if (w < 1) w = 1;
					h = height / font_height;
					if (h < 1) h = 1;

					term_size(term, h, w, cfg.savelines);
				}
				reset_window(0);
			} else if (wParam == SIZE_RESTORED && was_zoomed) {
				was_zoomed = 0;
				if (cfg.resize_action == RESIZE_TERM)
					term_size(term, prev_rows, prev_cols, cfg.savelines);
				if (cfg.resize_action != RESIZE_FONT)
					reset_window(2);
				else
					reset_window(0);
			}
			/* This is an unexpected resize, these will normally happen
			* if the window is too large. Probably either the user
			* selected a huge font or the screen size has changed.
		 *
		 * This is also called with minimize.
		 */
			else reset_window(-1);
		}

		/*
		* Don't call back->size in mid-resize. (To prevent
		* massive numbers of resize events getting sent
		* down the connection during an NT opaque drag.)
		*/
		if (resizing) {
			if (cfg.resize_action != RESIZE_FONT && !is_alt_pressed()) {
				need_backend_resize = TRUE;
				w = (width-cfg.window_border*2) / font_width;
				if (w < 1) w = 1;
				h = (height-cfg.window_border*2) / font_height;
				if (h < 1) h = 1;

				cfg.height = h;
				cfg.width = w;
			} else 
				reset_window(0);
		}
	}
	sys_cursor_update();
	return 0;
case WM_VSCROLL:
	switch (LOWORD(wParam)) {
case SB_BOTTOM:
	term_scroll(term, -1, 0);
	break;
case SB_TOP:
	term_scroll(term, +1, 0);
	break;
case SB_LINEDOWN:
	term_scroll(term, 0, +1);
	break;
case SB_LINEUP:
	term_scroll(term, 0, -1);
	break;
case SB_PAGEDOWN:
	term_scroll(term, 0, +term->rows / 2);
	break;
case SB_PAGEUP:
	term_scroll(term, 0, -term->rows / 2);
	break;
case SB_THUMBPOSITION:
case SB_THUMBTRACK:
	term_scroll(term, 1, HIWORD(wParam));
	break;
	}
	break;
case WM_PALETTECHANGED:
	if ((HWND) wParam != hwnd && pal != NULL) {
		HDC hdc = get_ctx(NULL);
		if (hdc) {
			if (RealizePalette(hdc) > 0)
				UpdateColors(hdc);
			free_ctx(hdc);
		}
	}
	break;
case WM_QUERYNEWPALETTE:
	if (pal != NULL) {
		HDC hdc = get_ctx(NULL);
		if (hdc) {
			if (RealizePalette(hdc) > 0)
				UpdateColors(hdc);
			free_ctx(hdc);
			return TRUE;
		}
	}
	return FALSE;
case WM_KEYDOWN:
case WM_SYSKEYDOWN:
case WM_KEYUP:
case WM_SYSKEYUP:
	/*
	* Add the scan code and keypress timing to the random
	* number noise.
	*/
	noise_ultralight(lParam);

	/*
	* We don't do TranslateMessage since it disassociates the
	* resulting CHAR message from the KEYDOWN that sparked it,
	* which we occasionally don't want. Instead, we process
	* KEYDOWN, and call the Win32 translator functions so that
	* we get the translations under _our_ control.
	*/
	{
		unsigned char buf[20];
		int len;

		if (wParam == VK_PROCESSKEY) { /* IME PROCESS key */
			if (message == WM_KEYDOWN) {
				MSG m;
				m.hwnd = hwnd;
				m.message = WM_KEYDOWN;
				m.wParam = wParam;
				m.lParam = lParam & 0xdfff;
				TranslateMessage(&m);
			} else break; /* pass to Windows for default processing */
		} else {
			len = TranslateKey(message, wParam, lParam, buf);
			if (len == -1)
				return DefWindowProc(hwnd, message, wParam, lParam);

			if (len != 0) {
				/*
				* Interrupt an ongoing paste. I'm not sure
				* this is sensible, but for the moment it's
				* preferable to having to faff about buffering
				* things.
				*/
				term_nopaste(term);

				/*
				* We need not bother about stdin backlogs
				* here, because in GUI PuTTY we can't do
				* anything about it anyway; there's no means
				* of asking Windows to hold off on KEYDOWN
				* messages. We _have_ to buffer everything
				* we're sent.
				*/
				term_seen_key_event(term);
				if (ldisc)
					ldisc_send(ldisc, buf, len, 1);
				show_mouseptr(0);
			}
		}
	}
	net_pending_errors();
	return 0;
case WM_INPUTLANGCHANGE:
	/* wParam == Font number */
	/* lParam == Locale */
	set_input_locale((HKL)lParam);
	sys_cursor_update();
	break;
case WM_IME_STARTCOMPOSITION:
	{
		HIMC hImc = ImmGetContext(hwnd);
		ImmSetCompositionFont(hImc, &lfont);
		ImmReleaseContext(hwnd, hImc);
	}
	break;
case WM_IME_COMPOSITION:
	{
		HIMC hIMC;
		int n;
		char *buff;

		if(osVersion.dwPlatformId == VER_PLATFORM_WIN32_WINDOWS || 
			osVersion.dwPlatformId == VER_PLATFORM_WIN32s) break; /* no Unicode */

		if ((lParam & GCS_RESULTSTR) == 0) /* Composition unfinished. */
			break; /* fall back to DefWindowProc */

		hIMC = ImmGetContext(hwnd);
		n = ImmGetCompositionStringW(hIMC, GCS_RESULTSTR, NULL, 0);

		if (n > 0) {
			int i;
			buff = snewn(n, char);
			ImmGetCompositionStringW(hIMC, GCS_RESULTSTR, buff, n);
			/*
			* Jaeyoun Chung reports that Korean character
			* input doesn't work correctly if we do a single
			* luni_send() covering the whole of buff. So
			* instead we luni_send the characters one by one.
			*/
			term_seen_key_event(term);
			for (i = 0; i < n; i += 2) {
				if (ldisc)
					luni_send(ldisc, (unsigned short *)(buff+i), 1, 1);
			}
			free(buff);
		}
		ImmReleaseContext(hwnd, hIMC);
		return 1;
	}

case WM_IME_CHAR:
	if (wParam & 0xFF00) {
		unsigned char buf[2];

		buf[1] = wParam;
		buf[0] = wParam >> 8;
		term_seen_key_event(term);
		if (ldisc)
			lpage_send(ldisc, kbd_codepage, buf, 2, 1);
	} else {
		char c = (unsigned char) wParam;
		term_seen_key_event(term);
		if (ldisc)
			lpage_send(ldisc, kbd_codepage, &c, 1, 1);
	}
	return (0);
case WM_CHAR:
case WM_SYSCHAR:
	/*
	* Nevertheless, we are prepared to deal with WM_CHAR
	* messages, should they crop up. So if someone wants to
	* post the things to us as part of a macro manoeuvre,
	* we're ready to cope.
	*/
	{
		char c = (unsigned char)wParam;
		term_seen_key_event(term);
		if (ldisc)
			lpage_send(ldisc, CP_ACP, &c, 1, 1);
	}
	return 0;
case WM_SYSCOLORCHANGE:
	if (cfg.system_colour) {
		/* Refresh palette from system colours. */
		/* XXX actually this zaps the entire palette. */
		systopalette();
		init_palette();
		/* Force a repaint of the terminal window. */
		term_invalidate(term);
	}
	break;
case WM_AGENT_CALLBACK:
	{
		struct agent_callback *c = (struct agent_callback *)lParam;
		c->callback(c->callback_ctx, c->data, c->len);
		sfree(c);
	}
	return 0;
default:
	if (message == wm_mousewheel || message == WM_MOUSEWHEEL) {
		int shift_pressed=0, control_pressed=0;

		if (message == WM_MOUSEWHEEL) {
			wheel_accumulator += (short)HIWORD(wParam);
			shift_pressed=LOWORD(wParam) & MK_SHIFT;
			control_pressed=LOWORD(wParam) & MK_CONTROL;
		} else {
			BYTE keys[256];
			wheel_accumulator += (int)wParam;
			if (GetKeyboardState(keys)!=0) {
				shift_pressed=keys[VK_SHIFT]&0x80;
				control_pressed=keys[VK_CONTROL]&0x80;
			}
		}

		/* process events when the threshold is reached */
		while (abs(wheel_accumulator) >= WHEEL_DELTA) {
			int b;

			/* reduce amount for next time */
			if (wheel_accumulator > 0) {
				b = MBT_WHEEL_UP;
				wheel_accumulator -= WHEEL_DELTA;
			} else if (wheel_accumulator < 0) {
				b = MBT_WHEEL_DOWN;
				wheel_accumulator += WHEEL_DELTA;
			} else
				break;

			if (send_raw_mouse &&
				!(cfg.mouse_override && shift_pressed)) {
					/* send a mouse-down followed by a mouse up */
					term_mouse(term, b, translate_button(b),
						MA_CLICK,
						TO_CHR_X(X_POS(lParam)),
						TO_CHR_Y(Y_POS(lParam)), shift_pressed,
						control_pressed, is_alt_pressed());
					term_mouse(term, b, translate_button(b),
						MA_RELEASE, TO_CHR_X(X_POS(lParam)),
						TO_CHR_Y(Y_POS(lParam)), shift_pressed,
						control_pressed, is_alt_pressed());
			} else {
				/* trigger a scroll */
				term_scroll(term, 0,
					b == MBT_WHEEL_UP ?
					-term->rows / 2 : term->rows / 2);
			}
		}
		return 0;
	}
	}

	/*
	* Any messages we don't process completely above are passed through to
	* DefWindowProc() for default processing.
	*/
	return DefWindowProc(hwnd, message, wParam, lParam);
}

/*
* Move the system caret. (We maintain one, even though it's
* invisible, for the benefit of blind people: apparently some
* helper software tracks the system caret, so we should arrange to
* have one.)
*/
void sys_cursor(void *frontend, int x, int y)
{
	int cx, cy;

	if (!term->has_focus) return;

	/*
	* Avoid gratuitously re-updating the cursor position and IMM
	* window if there's no actual change required.
	*/
	cx = x * font_width + offset_width;
	cy = y * font_height + offset_height;
	if (cx == caret_x && cy == caret_y)
		return;
	caret_x = cx;
	caret_y = cy;

	sys_cursor_update();
}

static void sys_cursor_update(void)
{
	COMPOSITIONFORM cf;
	HIMC hIMC;

	if (!term->has_focus) return;

	if (caret_x < 0 || caret_y < 0)
		return;

	SetCaretPos(caret_x, caret_y);

	/* IMM calls on Win98 and beyond only */
	if(osVersion.dwPlatformId == VER_PLATFORM_WIN32s) return; /* 3.11 */

	if(osVersion.dwPlatformId == VER_PLATFORM_WIN32_WINDOWS &&
		osVersion.dwMinorVersion == 0) return; /* 95 */

	/* we should have the IMM functions */
	hIMC = ImmGetContext(hwnd);
	cf.dwStyle = CFS_POINT;
	cf.ptCurrentPos.x = caret_x;
	cf.ptCurrentPos.y = caret_y;
	ImmSetCompositionWindow(hIMC, &cf);

	ImmReleaseContext(hwnd, hIMC);
}

/*
* Draw a line of text in the window, at given character
* coordinates, in given attributes.
*
* We are allowed to fiddle with the contents of `text'.
*/
void do_text_internal(Context ctx, int x, int y, wchar_t *text, int len,
					  unsigned long attr, int lattr)
{
	COLORREF fg, bg, t;
	int nfg, nbg, nfont;
	HDC hdc = ctx;
	RECT line_box;
	int force_manual_underline = 0;
	int fnt_width, char_width;
	int text_adjust = 0;
	static int *IpDx = 0, IpDxLEN = 0;

	lattr &= LATTR_MODE;

	char_width = fnt_width = font_width * (1 + (lattr != LATTR_NORM));

	if (attr & ATTR_WIDE)
		char_width *= 2;

	if (len > IpDxLEN || IpDx[0] != char_width) {
		int i;
		if (len > IpDxLEN) {
			sfree(IpDx);
			IpDx = snewn(len + 16, int);
			IpDxLEN = (len + 16);
		}
		for (i = 0; i < IpDxLEN; i++)
			IpDx[i] = char_width;
	}

	/* Only want the left half of double width lines */
	if (lattr != LATTR_NORM && x*2 >= term->cols)
		return;

	x *= fnt_width;
	y *= font_height;
	x += offset_width;
	y += offset_height;

	if ((attr & TATTR_ACTCURS) && (cfg.cursor_type == 0 || term->big_cursor)) {
		attr &= ~(ATTR_REVERSE|ATTR_BLINK|ATTR_COLOURS);
		if (bold_mode == BOLD_COLOURS)
			attr &= ~ATTR_BOLD;

		/* cursor fg and bg */
		attr |= (260 << ATTR_FGSHIFT) | (261 << ATTR_BGSHIFT);
	}

	nfont = 0;
	if (cfg.vtmode == VT_POORMAN && lattr != LATTR_NORM) {
		/* Assume a poorman font is borken in other ways too. */
		lattr = LATTR_WIDE;
	} else
		switch (lattr) {
case LATTR_NORM:
	break;
case LATTR_WIDE:
	nfont |= FONT_WIDE;
	break;
default:
	nfont |= FONT_WIDE + FONT_HIGH;
	break;
	}
	if (attr & ATTR_NARROW)
		nfont |= FONT_NARROW;

	/* Special hack for the VT100 linedraw glyphs. */
	if (text[0] >= 0x23BA && text[0] <= 0x23BD) {
		switch ((unsigned char) (text[0])) {
case 0xBA:
	text_adjust = -2 * font_height / 5;
	break;
case 0xBB:
	text_adjust = -1 * font_height / 5;
	break;
case 0xBC:
	text_adjust = font_height / 5;
	break;
case 0xBD:
	text_adjust = 2 * font_height / 5;
	break;
		}
		if (lattr == LATTR_TOP || lattr == LATTR_BOT)
			text_adjust *= 2;
		text[0] = ucsdata.unitab_xterm['q'];
		if (attr & ATTR_UNDER) {
			attr &= ~ATTR_UNDER;
			force_manual_underline = 1;
		}
	}

	/* Anything left as an original character set is unprintable. */
	if (DIRECT_CHAR(text[0])) {
		int i;
		for (i = 0; i < len; i++)
			text[i] = 0xFFFD;
	}

	/* OEM CP */
	if ((text[0] & CSET_MASK) == CSET_OEMCP)
		nfont |= FONT_OEM;

	nfg = ((attr & ATTR_FGMASK) >> ATTR_FGSHIFT);
	nbg = ((attr & ATTR_BGMASK) >> ATTR_BGSHIFT);
	if (bold_mode == BOLD_FONT && (attr & ATTR_BOLD))
		nfont |= FONT_BOLD;
	if (und_mode == UND_FONT && (attr & ATTR_UNDER))
		nfont |= FONT_UNDERLINE;
	another_font(nfont);
	if (!fonts[nfont]) {
		if (nfont & FONT_UNDERLINE)
			force_manual_underline = 1;
		/* Don't do the same for manual bold, it could be bad news. */

		nfont &= ~(FONT_BOLD | FONT_UNDERLINE);
	}
	another_font(nfont);
	if (!fonts[nfont])
		nfont = FONT_NORMAL;
	if (attr & ATTR_REVERSE) {
		t = nfg;
		nfg = nbg;
		nbg = t;
	}
	if (bold_mode == BOLD_COLOURS && (attr & ATTR_BOLD)) {
		if (nfg < 16) nfg |= 8;
		else if (nfg >= 256) nfg |= 1;
	}
	if (bold_mode == BOLD_COLOURS && (attr & ATTR_BLINK)) {
		if (nbg < 16) nbg |= 8;
		else if (nbg >= 256) nbg |= 1;
	}
	fg = colours[nfg];
	bg = colours[nbg];
	SelectObject(hdc, fonts[nfont]);
	SetTextColor(hdc, fg);
	SetBkColor(hdc, bg);
	if (attr & TATTR_COMBINING)
		SetBkMode(hdc, TRANSPARENT);
	else
		SetBkMode(hdc, OPAQUE);
	line_box.left = x;
	line_box.top = y;
	line_box.right = x + char_width * len;
	line_box.bottom = y + font_height;

	/* Only want the left half of double width lines */
	if (line_box.right > font_width*term->cols+offset_width)
		line_box.right = font_width*term->cols+offset_width;

	/* We're using a private area for direct to font. (512 chars.) */
	if (ucsdata.dbcs_screenfont && (text[0] & CSET_MASK) == CSET_ACP) {
		/* Ho Hum, dbcs fonts are a PITA! */
		/* To display on W9x I have to convert to UCS */
		static wchar_t *uni_buf = 0;
		static int uni_len = 0;
		int nlen, mptr;
		if (len > uni_len) {
			sfree(uni_buf);
			uni_len = len;
			uni_buf = snewn(uni_len, wchar_t);
		}

		for(nlen = mptr = 0; mptr<len; mptr++) {
			uni_buf[nlen] = 0xFFFD;
			if (IsDBCSLeadByteEx(ucsdata.font_codepage, (BYTE) text[mptr])) {
				char dbcstext[2];
				dbcstext[0] = text[mptr] & 0xFF;
				dbcstext[1] = text[mptr+1] & 0xFF;
				IpDx[nlen] += char_width;
				MultiByteToWideChar(ucsdata.font_codepage, MB_USEGLYPHCHARS,
					dbcstext, 2, uni_buf+nlen, 1);
				mptr++;
			}
			else
			{
				char dbcstext[1];
				dbcstext[0] = text[mptr] & 0xFF;
				MultiByteToWideChar(ucsdata.font_codepage, MB_USEGLYPHCHARS,
					dbcstext, 1, uni_buf+nlen, 1);
			}
			nlen++;
		}
		if (nlen <= 0)
			return;		       /* Eeek! */

		ExtTextOutW(hdc, x,
			y - font_height * (lattr == LATTR_BOT) + text_adjust,
			ETO_CLIPPED | ETO_OPAQUE, &line_box, uni_buf, nlen, IpDx);
		if (bold_mode == BOLD_SHADOW && (attr & ATTR_BOLD)) {
			SetBkMode(hdc, TRANSPARENT);
			ExtTextOutW(hdc, x - 1,
				y - font_height * (lattr ==
				LATTR_BOT) + text_adjust,
				ETO_CLIPPED, &line_box, uni_buf, nlen, IpDx);
		}

		IpDx[0] = -1;
	} else if (DIRECT_FONT(text[0])) {
		static char *directbuf = NULL;
		static int directlen = 0;
		int i;
		if (len > directlen) {
			directlen = len;
			directbuf = sresize(directbuf, directlen, char);
		}

		for (i = 0; i < len; i++)
			directbuf[i] = text[i] & 0xFF;

		ExtTextOut(hdc, x,
			y - font_height * (lattr == LATTR_BOT) + text_adjust,
			ETO_CLIPPED | ETO_OPAQUE, &line_box, directbuf, len, IpDx);
		if (bold_mode == BOLD_SHADOW && (attr & ATTR_BOLD)) {
			SetBkMode(hdc, TRANSPARENT);

			/* GRR: This draws the character outside it's box and can leave
			* 'droppings' even with the clip box! I suppose I could loop it
			* one character at a time ... yuk. 
			* 
			* Or ... I could do a test print with "W", and use +1 or -1 for this
			* shift depending on if the leftmost column is blank...
			*/
			ExtTextOut(hdc, x - 1,
				y - font_height * (lattr ==
				LATTR_BOT) + text_adjust,
				ETO_CLIPPED, &line_box, directbuf, len, IpDx);
		}
	} else {
		/* And 'normal' unicode characters */
		static WCHAR *wbuf = NULL;
		static int wlen = 0;
		int i;

		if (wlen < len) {
			sfree(wbuf);
			wlen = len;
			wbuf = snewn(wlen, WCHAR);
		}

		for (i = 0; i < len; i++)
			wbuf[i] = text[i];

		/* print Glyphs as they are, without Windows' Shaping*/
		general_textout(hdc, x, y - font_height * (lattr == LATTR_BOT) + text_adjust,
			&line_box, wbuf, len, IpDx, !(attr & TATTR_COMBINING));

		/* And the shadow bold hack. */
		if (bold_mode == BOLD_SHADOW && (attr & ATTR_BOLD)) {
			SetBkMode(hdc, TRANSPARENT);
			ExtTextOutW(hdc, x - 1,
				y - font_height * (lattr ==
				LATTR_BOT) + text_adjust,
				ETO_CLIPPED, &line_box, wbuf, len, IpDx);
		}
	}
	if (lattr != LATTR_TOP && (force_manual_underline ||
		(und_mode == UND_LINE
		&& (attr & ATTR_UNDER)))) {
			HPEN oldpen;
			int dec = descent;
			if (lattr == LATTR_BOT)
				dec = dec * 2 - font_height;

			oldpen = SelectObject(hdc, CreatePen(PS_SOLID, 0, fg));
			MoveToEx(hdc, x, y + dec, NULL);
			LineTo(hdc, x + len * char_width, y + dec);
			oldpen = SelectObject(hdc, oldpen);
			DeleteObject(oldpen);
	}
}

/*
* Wrapper that handles combining characters.
*/
void do_text(Context ctx, int x, int y, wchar_t *text, int len,
			 unsigned long attr, int lattr)
{
	if (attr & TATTR_COMBINING) {
		unsigned long a = 0;
		attr &= ~TATTR_COMBINING;
		while (len--) {
			do_text_internal(ctx, x, y, text, 1, attr | a, lattr);
			text++;
			a = TATTR_COMBINING;
		}
	} else
		do_text_internal(ctx, x, y, text, len, attr, lattr);
}

void do_cursor(Context ctx, int x, int y, wchar_t *text, int len,
			   unsigned long attr, int lattr)
{

	int fnt_width;
	int char_width;
	HDC hdc = ctx;
	int ctype = cfg.cursor_type;

	lattr &= LATTR_MODE;

	if ((attr & TATTR_ACTCURS) && (ctype == 0 || term->big_cursor)) {
		if (*text != UCSWIDE) {
			do_text(ctx, x, y, text, len, attr, lattr);
			return;
		}
		ctype = 2;
		attr |= TATTR_RIGHTCURS;
	}

	fnt_width = char_width = font_width * (1 + (lattr != LATTR_NORM));
	if (attr & ATTR_WIDE)
		char_width *= 2;
	x *= fnt_width;
	y *= font_height;
	x += offset_width;
	y += offset_height;

	if ((attr & TATTR_PASCURS) && (ctype == 0 || term->big_cursor)) {
		POINT pts[5];
		HPEN oldpen;
		pts[0].x = pts[1].x = pts[4].x = x;
		pts[2].x = pts[3].x = x + char_width - 1;
		pts[0].y = pts[3].y = pts[4].y = y;
		pts[1].y = pts[2].y = y + font_height - 1;
		oldpen = SelectObject(hdc, CreatePen(PS_SOLID, 0, colours[261]));
		Polyline(hdc, pts, 5);
		oldpen = SelectObject(hdc, oldpen);
		DeleteObject(oldpen);
	} else if ((attr & (TATTR_ACTCURS | TATTR_PASCURS)) && ctype != 0) {
		int startx, starty, dx, dy, length, i;
		if (ctype == 1) {
			startx = x;
			starty = y + descent;
			dx = 1;
			dy = 0;
			length = char_width;
		} else {
			int xadjust = 0;
			if (attr & TATTR_RIGHTCURS)
				xadjust = char_width - 1;
			startx = x + xadjust;
			starty = y;
			dx = 0;
			dy = 1;
			length = font_height;
		}
		if (attr & TATTR_ACTCURS) {
			HPEN oldpen;
			oldpen =
				SelectObject(hdc, CreatePen(PS_SOLID, 0, colours[261]));
			MoveToEx(hdc, startx, starty, NULL);
			LineTo(hdc, startx + dx * length, starty + dy * length);
			oldpen = SelectObject(hdc, oldpen);
			DeleteObject(oldpen);
		} else {
			for (i = 0; i < length; i++) {
				if (i % 2 == 0) {
					SetPixel(hdc, startx, starty, colours[261]);
				}
				startx += dx;
				starty += dy;
			}
		}
	}
}

/* This function gets the actual width of a character in the normal font.
*/
int char_width(Context ctx, int uc) {
	HDC hdc = ctx;
	int ibuf = 0;

	/* If the font max is the same as the font ave width then this
	* function is a no-op.
	*/
	if (!font_dualwidth) return 1;

	switch (uc & CSET_MASK) {
	  case CSET_ASCII:
		  uc = ucsdata.unitab_line[uc & 0xFF];
		  break;
	  case CSET_LINEDRW:
		  uc = ucsdata.unitab_xterm[uc & 0xFF];
		  break;
	  case CSET_SCOACS:
		  uc = ucsdata.unitab_scoacs[uc & 0xFF];
		  break;
	}
	if (DIRECT_FONT(uc)) {
		if (ucsdata.dbcs_screenfont) return 1;

		/* Speedup, I know of no font where ascii is the wrong width */
		if ((uc&~CSET_MASK) >= ' ' && (uc&~CSET_MASK)<= '~')
			return 1;

		if ( (uc & CSET_MASK) == CSET_ACP ) {
			SelectObject(hdc, fonts[FONT_NORMAL]);
		} else if ( (uc & CSET_MASK) == CSET_OEMCP ) {
			another_font(FONT_OEM);
			if (!fonts[FONT_OEM]) return 0;

			SelectObject(hdc, fonts[FONT_OEM]);
		} else
			return 0;

		if ( GetCharWidth32(hdc, uc&~CSET_MASK, uc&~CSET_MASK, &ibuf) != 1 &&
			GetCharWidth(hdc, uc&~CSET_MASK, uc&~CSET_MASK, &ibuf) != 1)
			return 0;
	} else {
		/* Speedup, I know of no font where ascii is the wrong width */
		if (uc >= ' ' && uc <= '~') return 1;

		SelectObject(hdc, fonts[FONT_NORMAL]);
		if ( GetCharWidth32W(hdc, uc, uc, &ibuf) == 1 )
			/* Okay that one worked */ ;
		else if ( GetCharWidthW(hdc, uc, uc, &ibuf) == 1 )
			/* This should work on 9x too, but it's "less accurate" */ ;
		else
			return 0;
	}

	ibuf += font_width / 2 -1;
	ibuf /= font_width;

	return ibuf;
}

/*
* Translate a WM_(SYS)?KEY(UP|DOWN) message into a string of ASCII
* codes. Returns number of bytes used, zero to drop the message,
* -1 to forward the message to Windows, or another negative number
* to indicate a NUL-terminated "special" string.
*/
static int TranslateKey(UINT message, WPARAM wParam, LPARAM lParam,
						unsigned char *output)
{
	BYTE keystate[256];
	int scan, left_alt = 0, key_down, shift_state;
	int r, i, code;
	unsigned char *p = output;
	static int alt_sum = 0;

	HKL kbd_layout = GetKeyboardLayout(0);

	/* keys is for ToAsciiEx. There's some ick here, see below. */
	static WORD keys[3];
	static int compose_char = 0;
	static WPARAM compose_key = 0;

	r = GetKeyboardState(keystate);
	if (!r)
		memset(keystate, 0, sizeof(keystate));
	else {
#if 0
#define SHOW_TOASCII_RESULT
		{			       /* Tell us all about key events */
			static BYTE oldstate[256];
			static int first = 1;
			static int scan;
			int ch;
			if (first)
				memcpy(oldstate, keystate, sizeof(oldstate));
			first = 0;

			if ((HIWORD(lParam) & (KF_UP | KF_REPEAT)) == KF_REPEAT) {
				debug(("+"));
			} else if ((HIWORD(lParam) & KF_UP)
				&& scan == (HIWORD(lParam) & 0xFF)) {
					debug((". U"));
			} else {
				debug((".\n"));
				if (wParam >= VK_F1 && wParam <= VK_F20)
					debug(("K_F%d", wParam + 1 - VK_F1));
				else
					switch (wParam) {
case VK_SHIFT:
	debug(("SHIFT"));
	break;
case VK_CONTROL:
	debug(("CTRL"));
	break;
case VK_MENU:
	debug(("ALT"));
	break;
default:
	debug(("VK_%02x", wParam));
				}
				if (message == WM_SYSKEYDOWN || message == WM_SYSKEYUP)
					debug(("*"));
				debug((", S%02x", scan = (HIWORD(lParam) & 0xFF)));

				ch = MapVirtualKeyEx(wParam, 2, kbd_layout);
				if (ch >= ' ' && ch <= '~')
					debug((", '%c'", ch));
				else if (ch)
					debug((", $%02x", ch));

				if (keys[0])
					debug((", KB0=%02x", keys[0]));
				if (keys[1])
					debug((", KB1=%02x", keys[1]));
				if (keys[2])
					debug((", KB2=%02x", keys[2]));

				if ((keystate[VK_SHIFT] & 0x80) != 0)
					debug((", S"));
				if ((keystate[VK_CONTROL] & 0x80) != 0)
					debug((", C"));
				if ((HIWORD(lParam) & KF_EXTENDED))
					debug((", E"));
				if ((HIWORD(lParam) & KF_UP))
					debug((", U"));
			}

			if ((HIWORD(lParam) & (KF_UP | KF_REPEAT)) == KF_REPEAT);
			else if ((HIWORD(lParam) & KF_UP))
				oldstate[wParam & 0xFF] ^= 0x80;
			else
				oldstate[wParam & 0xFF] ^= 0x81;

			for (ch = 0; ch < 256; ch++)
				if (oldstate[ch] != keystate[ch])
					debug((", M%02x=%02x", ch, keystate[ch]));

			memcpy(oldstate, keystate, sizeof(oldstate));
		}
#endif

		if (wParam == VK_MENU && (HIWORD(lParam) & KF_EXTENDED)) {
			keystate[VK_RMENU] = keystate[VK_MENU];
		}


		/* Nastyness with NUMLock - Shift-NUMLock is left alone though */
		if ((cfg.funky_type == FUNKY_VT400 ||
			(cfg.funky_type <= FUNKY_LINUX && term->app_keypad_keys &&
			!cfg.no_applic_k))
			&& wParam == VK_NUMLOCK && !(keystate[VK_SHIFT] & 0x80)) {

				wParam = VK_EXECUTE;

				/* UnToggle NUMLock */
				if ((HIWORD(lParam) & (KF_UP | KF_REPEAT)) == 0)
					keystate[VK_NUMLOCK] ^= 1;
		}

		/* And write back the 'adjusted' state */
		SetKeyboardState(keystate);
	}

	/* Disable Auto repeat if required */
	if (term->repeat_off &&
		(HIWORD(lParam) & (KF_UP | KF_REPEAT)) == KF_REPEAT)
		return 0;

	if ((HIWORD(lParam) & KF_ALTDOWN) && (keystate[VK_RMENU] & 0x80) == 0)
		left_alt = 1;

	key_down = ((HIWORD(lParam) & KF_UP) == 0);

	/* Make sure Ctrl-ALT is not the same as AltGr for ToAscii unless told. */
	if (left_alt && (keystate[VK_CONTROL] & 0x80)) {
		if (cfg.ctrlaltkeys)
			keystate[VK_MENU] = 0;
		else {
			keystate[VK_RMENU] = 0x80;
			left_alt = 0;
		}
	}

	scan = (HIWORD(lParam) & (KF_UP | KF_EXTENDED | 0xFF));
	shift_state = ((keystate[VK_SHIFT] & 0x80) != 0)
		+ ((keystate[VK_CONTROL] & 0x80) != 0) * 2;

	/* Note if AltGr was pressed and if it was used as a compose key */
	if (!compose_state) {
		compose_key = 0x100;
		if (cfg.compose_key) {
			if (wParam == VK_MENU && (HIWORD(lParam) & KF_EXTENDED))
				compose_key = wParam;
		}
		if (wParam == VK_APPS)
			compose_key = wParam;
	}

	if (wParam == compose_key) {
		if (compose_state == 0
			&& (HIWORD(lParam) & (KF_UP | KF_REPEAT)) == 0) compose_state =
			1;
		else if (compose_state == 1 && (HIWORD(lParam) & KF_UP))
			compose_state = 2;
		else
			compose_state = 0;
	} else if (compose_state == 1 && wParam != VK_CONTROL)
		compose_state = 0;

	if (compose_state > 1 && left_alt)
		compose_state = 0;

	/* Sanitize the number pad if not using a PC NumPad */
	if (left_alt || (term->app_keypad_keys && !cfg.no_applic_k
		&& cfg.funky_type != FUNKY_XTERM)
		|| cfg.funky_type == FUNKY_VT400 || cfg.nethack_keypad || compose_state) {
			if ((HIWORD(lParam) & KF_EXTENDED) == 0) {
				int nParam = 0;
				switch (wParam) {
case VK_INSERT:
	nParam = VK_NUMPAD0;
	break;
case VK_END:
	nParam = VK_NUMPAD1;
	break;
case VK_DOWN:
	nParam = VK_NUMPAD2;
	break;
case VK_NEXT:
	nParam = VK_NUMPAD3;
	break;
case VK_LEFT:
	nParam = VK_NUMPAD4;
	break;
case VK_CLEAR:
	nParam = VK_NUMPAD5;
	break;
case VK_RIGHT:
	nParam = VK_NUMPAD6;
	break;
case VK_HOME:
	nParam = VK_NUMPAD7;
	break;
case VK_UP:
	nParam = VK_NUMPAD8;
	break;
case VK_PRIOR:
	nParam = VK_NUMPAD9;
	break;
case VK_DELETE:
	nParam = VK_DECIMAL;
	break;
				}
				if (nParam) {
					if (keystate[VK_NUMLOCK] & 1)
						shift_state |= 1;
					wParam = nParam;
				}
			}
	}

	/* If a key is pressed and AltGr is not active */
	if (key_down && (keystate[VK_RMENU] & 0x80) == 0 && !compose_state) {
		/* Okay, prepare for most alts then ... */
		if (left_alt)
			*p++ = '\033';

		/* Lets see if it's a pattern we know all about ... */
		if (wParam == VK_PRIOR && shift_state == 1) {
			SendMessage(hwnd, WM_VSCROLL, SB_PAGEUP, 0);
			return 0;
		}
		if (wParam == VK_PRIOR && shift_state == 2) {
			SendMessage(hwnd, WM_VSCROLL, SB_LINEUP, 0);
			return 0;
		}
		if (wParam == VK_NEXT && shift_state == 1) {
			SendMessage(hwnd, WM_VSCROLL, SB_PAGEDOWN, 0);
			return 0;
		}
		if (wParam == VK_NEXT && shift_state == 2) {
			SendMessage(hwnd, WM_VSCROLL, SB_LINEDOWN, 0);
			return 0;
		}
		if (wParam == VK_INSERT && shift_state == 1) {
			term_do_paste(term);
			return 0;
		}
		if (left_alt && wParam == VK_F4 && cfg.alt_f4) {
			return -1;
		}
		if (left_alt && wParam == VK_SPACE && cfg.alt_space) {
			SendMessage(hwnd, WM_SYSCOMMAND, SC_KEYMENU, 0);
			return -1;
		}
		if (left_alt && wParam == VK_RETURN && cfg.fullscreenonaltenter &&
			(cfg.resize_action != RESIZE_DISABLED)) {
				if ((HIWORD(lParam) & (KF_UP | KF_REPEAT)) != KF_REPEAT)
					flip_full_screen();
				return -1;
		}
		/* Control-Numlock for app-keypad mode switch */
		if (wParam == VK_PAUSE && shift_state == 2) {
			term->app_keypad_keys ^= 1;
			return 0;
		}

		/* Nethack keypad */
		if (cfg.nethack_keypad && !left_alt) {
			switch (wParam) {
case VK_NUMPAD1:
	*p++ = "bB\002\002"[shift_state & 3];
	return p - output;
case VK_NUMPAD2:
	*p++ = "jJ\012\012"[shift_state & 3];
	return p - output;
case VK_NUMPAD3:
	*p++ = "nN\016\016"[shift_state & 3];
	return p - output;
case VK_NUMPAD4:
	*p++ = "hH\010\010"[shift_state & 3];
	return p - output;
case VK_NUMPAD5:
	*p++ = shift_state ? '.' : '.';
	return p - output;
case VK_NUMPAD6:
	*p++ = "lL\014\014"[shift_state & 3];
	return p - output;
case VK_NUMPAD7:
	*p++ = "yY\031\031"[shift_state & 3];
	return p - output;
case VK_NUMPAD8:
	*p++ = "kK\013\013"[shift_state & 3];
	return p - output;
case VK_NUMPAD9:
	*p++ = "uU\025\025"[shift_state & 3];
	return p - output;
			}
		}

		/* Application Keypad */
		if (!left_alt) {
			int xkey = 0;

			if (cfg.funky_type == FUNKY_VT400 ||
				(cfg.funky_type <= FUNKY_LINUX &&
				term->app_keypad_keys && !cfg.no_applic_k)) switch (wParam) {
case VK_EXECUTE:
	xkey = 'P';
	break;
case VK_DIVIDE:
	xkey = 'Q';
	break;
case VK_MULTIPLY:
	xkey = 'R';
	break;
case VK_SUBTRACT:
	xkey = 'S';
	break;
			}
			if (term->app_keypad_keys && !cfg.no_applic_k)
				switch (wParam) {
case VK_NUMPAD0:
	xkey = 'p';
	break;
case VK_NUMPAD1:
	xkey = 'q';
	break;
case VK_NUMPAD2:
	xkey = 'r';
	break;
case VK_NUMPAD3:
	xkey = 's';
	break;
case VK_NUMPAD4:
	xkey = 't';
	break;
case VK_NUMPAD5:
	xkey = 'u';
	break;
case VK_NUMPAD6:
	xkey = 'v';
	break;
case VK_NUMPAD7:
	xkey = 'w';
	break;
case VK_NUMPAD8:
	xkey = 'x';
	break;
case VK_NUMPAD9:
	xkey = 'y';
	break;

case VK_DECIMAL:
	xkey = 'n';
	break;
case VK_ADD:
	if (cfg.funky_type == FUNKY_XTERM) {
		if (shift_state)
			xkey = 'l';
		else
			xkey = 'k';
	} else if (shift_state)
		xkey = 'm';
	else
		xkey = 'l';
	break;

case VK_DIVIDE:
	if (cfg.funky_type == FUNKY_XTERM)
		xkey = 'o';
	break;
case VK_MULTIPLY:
	if (cfg.funky_type == FUNKY_XTERM)
		xkey = 'j';
	break;
case VK_SUBTRACT:
	if (cfg.funky_type == FUNKY_XTERM)
		xkey = 'm';
	break;

case VK_RETURN:
	if (HIWORD(lParam) & KF_EXTENDED)
		xkey = 'M';
	break;
			}
			if (xkey) {
				if (term->vt52_mode) {
					if (xkey >= 'P' && xkey <= 'S')
						p += sprintf((char *) p, "\x1B%c", xkey);
					else
						p += sprintf((char *) p, "\x1B?%c", xkey);
				} else
					p += sprintf((char *) p, "\x1BO%c", xkey);
				return p - output;
			}
		}

		if (wParam == VK_BACK && shift_state == 0) {	/* Backspace */
			*p++ = (cfg.bksp_is_delete ? 0x7F : 0x08);
			*p++ = 0;
			return -2;
		}
		if (wParam == VK_BACK && shift_state == 1) {	/* Shift Backspace */
			/* We do the opposite of what is configured */
			*p++ = (cfg.bksp_is_delete ? 0x08 : 0x7F);
			*p++ = 0;
			return -2;
		}
		if (wParam == VK_TAB && shift_state == 1) {	/* Shift tab */
			*p++ = 0x1B;
			*p++ = '[';
			*p++ = 'Z';
			return p - output;
		}
		if (wParam == VK_SPACE && shift_state == 2) {	/* Ctrl-Space */
			*p++ = 0;
			return p - output;
		}
		if (wParam == VK_SPACE && shift_state == 3) {	/* Ctrl-Shift-Space */
			*p++ = 160;
			return p - output;
		}
		if (wParam == VK_CANCEL && shift_state == 2) {	/* Ctrl-Break */
			if (back)
				back->special(backhandle, TS_BRK);
			return 0;
		}
		if (wParam == VK_PAUSE) {      /* Break/Pause */
			*p++ = 26;
			*p++ = 0;
			return -2;
		}
		/* Control-2 to Control-8 are special */
		if (shift_state == 2 && wParam >= '2' && wParam <= '8') {
			*p++ = "\000\033\034\035\036\037\177"[wParam - '2'];
			return p - output;
		}
		if (shift_state == 2 && (wParam == 0xBD || wParam == 0xBF)) {
			*p++ = 0x1F;
			return p - output;
		}
		if (shift_state == 2 && wParam == 0xDF) {
			*p++ = 0x1C;
			return p - output;
		}
		if (shift_state == 3 && wParam == 0xDE) {
			*p++ = 0x1E;	       /* Ctrl-~ == Ctrl-^ in xterm at least */
			return p - output;
		}
		if (shift_state == 0 && wParam == VK_RETURN && term->cr_lf_return) {
			*p++ = '\r';
			*p++ = '\n';
			return p - output;
		}

		/*
		* Next, all the keys that do tilde codes. (ESC '[' nn '~',
		* for integer decimal nn.)
		*
		* We also deal with the weird ones here. Linux VCs replace F1
		* to F5 by ESC [ [ A to ESC [ [ E. rxvt doesn't do _that_, but
		* does replace Home and End (1~ and 4~) by ESC [ H and ESC O w
		* respectively.
		*/
		code = 0;
		switch (wParam) {
case VK_F1:
	code = (keystate[VK_SHIFT] & 0x80 ? 23 : 11);
	break;
case VK_F2:
	code = (keystate[VK_SHIFT] & 0x80 ? 24 : 12);
	break;
case VK_F3:
	code = (keystate[VK_SHIFT] & 0x80 ? 25 : 13);
	break;
case VK_F4:
	code = (keystate[VK_SHIFT] & 0x80 ? 26 : 14);
	break;
case VK_F5:
	code = (keystate[VK_SHIFT] & 0x80 ? 28 : 15);
	break;
case VK_F6:
	code = (keystate[VK_SHIFT] & 0x80 ? 29 : 17);
	break;
case VK_F7:
	code = (keystate[VK_SHIFT] & 0x80 ? 31 : 18);
	break;
case VK_F8:
	code = (keystate[VK_SHIFT] & 0x80 ? 32 : 19);
	break;
case VK_F9:
	code = (keystate[VK_SHIFT] & 0x80 ? 33 : 20);
	break;
case VK_F10:
	code = (keystate[VK_SHIFT] & 0x80 ? 34 : 21);
	break;
case VK_F11:
	code = 23;
	break;
case VK_F12:
	code = 24;
	break;
case VK_F13:
	code = 25;
	break;
case VK_F14:
	code = 26;
	break;
case VK_F15:
	code = 28;
	break;
case VK_F16:
	code = 29;
	break;
case VK_F17:
	code = 31;
	break;
case VK_F18:
	code = 32;
	break;
case VK_F19:
	code = 33;
	break;
case VK_F20:
	code = 34;
	break;
		}
		if ((shift_state&2) == 0) switch (wParam) {
case VK_HOME:
	code = 1;
	break;
case VK_INSERT:
	code = 2;
	break;
case VK_DELETE:
	code = 3;
	break;
case VK_END:
	code = 4;
	break;
case VK_PRIOR:
	code = 5;
	break;
case VK_NEXT:
	code = 6;
	break;
		}
		/* Reorder edit keys to physical order */
		if (cfg.funky_type == FUNKY_VT400 && code <= 6)
			code = "\0\2\1\4\5\3\6"[code];

		if (term->vt52_mode && code > 0 && code <= 6) {
			p += sprintf((char *) p, "\x1B%c", " HLMEIG"[code]);
			return p - output;
		}

		if (cfg.funky_type == FUNKY_SCO &&     /* SCO function keys */
			code >= 11 && code <= 34) {
				char codes[] = "MNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz@[\\]^_`{";
				int index = 0;
				switch (wParam) {
case VK_F1: index = 0; break;
case VK_F2: index = 1; break;
case VK_F3: index = 2; break;
case VK_F4: index = 3; break;
case VK_F5: index = 4; break;
case VK_F6: index = 5; break;
case VK_F7: index = 6; break;
case VK_F8: index = 7; break;
case VK_F9: index = 8; break;
case VK_F10: index = 9; break;
case VK_F11: index = 10; break;
case VK_F12: index = 11; break;
				}
				if (keystate[VK_SHIFT] & 0x80) index += 12;
				if (keystate[VK_CONTROL] & 0x80) index += 24;
				p += sprintf((char *) p, "\x1B[%c", codes[index]);
				return p - output;
		}
		if (cfg.funky_type == FUNKY_SCO &&     /* SCO small keypad */
			code >= 1 && code <= 6) {
				char codes[] = "HL.FIG";
				if (code == 3) {
					*p++ = '\x7F';
				} else {
					p += sprintf((char *) p, "\x1B[%c", codes[code-1]);
				}
				return p - output;
		}
		if ((term->vt52_mode || cfg.funky_type == FUNKY_VT100P) && code >= 11 && code <= 24) {
			int offt = 0;
			if (code > 15)
				offt++;
			if (code > 21)
				offt++;
			if (term->vt52_mode)
				p += sprintf((char *) p, "\x1B%c", code + 'P' - 11 - offt);
			else
				p +=
				sprintf((char *) p, "\x1BO%c", code + 'P' - 11 - offt);
			return p - output;
		}
		if (cfg.funky_type == FUNKY_LINUX && code >= 11 && code <= 15) {
			p += sprintf((char *) p, "\x1B[[%c", code + 'A' - 11);
			return p - output;
		}
		if (cfg.funky_type == FUNKY_XTERM && code >= 11 && code <= 14) {
			if (term->vt52_mode)
				p += sprintf((char *) p, "\x1B%c", code + 'P' - 11);
			else
				p += sprintf((char *) p, "\x1BO%c", code + 'P' - 11);
			return p - output;
		}
		if (cfg.rxvt_homeend && (code == 1 || code == 4)) {
			p += sprintf((char *) p, code == 1 ? "\x1B[H" : "\x1BOw");
			return p - output;
		}
		if (code) {
			p += sprintf((char *) p, "\x1B[%d~", code);
			return p - output;
		}

		/*
		* Now the remaining keys (arrows and Keypad 5. Keypad 5 for
		* some reason seems to send VK_CLEAR to Windows...).
		*/
		{
			char xkey = 0;
			switch (wParam) {
		case VK_UP:
			xkey = 'A';
			break;
		case VK_DOWN:
			xkey = 'B';
			break;
		case VK_RIGHT:
			xkey = 'C';
			break;
		case VK_LEFT:
			xkey = 'D';
			break;
		case VK_CLEAR:
			xkey = 'G';
			break;
			}
			if (xkey) {
				if (term->vt52_mode)
					p += sprintf((char *) p, "\x1B%c", xkey);
				else {
					int app_flg = (term->app_cursor_keys && !cfg.no_applic_c);
#if 0
					/*
					* RDB: VT100 & VT102 manuals both state the
					* app cursor keys only work if the app keypad
					* is on.
					* 
					* SGT: That may well be true, but xterm
					* disagrees and so does at least one
					* application, so I've #if'ed this out and the
					* behaviour is back to PuTTY's original: app
					* cursor and app keypad are independently
					* switchable modes. If anyone complains about
					* _this_ I'll have to put in a configurable
					* option.
					*/
					if (!term->app_keypad_keys)
						app_flg = 0;
#endif
					/* Useful mapping of Ctrl-arrows */
					if (shift_state == 2)
						app_flg = !app_flg;

					if (app_flg)
						p += sprintf((char *) p, "\x1BO%c", xkey);
					else
						p += sprintf((char *) p, "\x1B[%c", xkey);
				}
				return p - output;
			}
		}

		/*
		* Finally, deal with Return ourselves. (Win95 seems to
		* foul it up when Alt is pressed, for some reason.)
		*/
		if (wParam == VK_RETURN) {     /* Return */
			*p++ = 0x0D;
			*p++ = 0;
			return -2;
		}

		if (left_alt && wParam >= VK_NUMPAD0 && wParam <= VK_NUMPAD9)
			alt_sum = alt_sum * 10 + wParam - VK_NUMPAD0;
		else
			alt_sum = 0;
	}

	/* Okay we've done everything interesting; let windows deal with 
	* the boring stuff */
	{
		BOOL capsOn=0;

		/* helg: clear CAPS LOCK state if caps lock switches to cyrillic */
		if(cfg.xlat_capslockcyr && keystate[VK_CAPITAL] != 0) {
			capsOn= !left_alt;
			keystate[VK_CAPITAL] = 0;
		}

		/* XXX how do we know what the max size of the keys array should
		* be is? There's indication on MS' website of an Inquire/InquireEx
		* functioning returning a KBINFO structure which tells us. */
		if (osVersion.dwPlatformId == VER_PLATFORM_WIN32_NT) {
			/* XXX 'keys' parameter is declared in MSDN documentation as
			* 'LPWORD lpChar'.
			* The experience of a French user indicates that on
			* Win98, WORD[] should be passed in, but on Win2K, it should
			* be BYTE[]. German WinXP and my Win2K with "US International"
			* driver corroborate this.
			* Experimentally I've conditionalised the behaviour on the
			* Win9x/NT split, but I suspect it's worse than that.
			* See wishlist item `win-dead-keys' for more horrible detail
			* and speculations. */
			BYTE keybs[3];
			int i;
			r = ToAsciiEx(wParam, scan, keystate, (LPWORD)keybs, 0, kbd_layout);
			for (i=0; i<3; i++) keys[i] = keybs[i];
		} else {
			r = ToAsciiEx(wParam, scan, keystate, keys, 0, kbd_layout);
		}
#ifdef SHOW_TOASCII_RESULT
		if (r == 1 && !key_down) {
			if (alt_sum) {
				if (in_utf(term) || ucsdata.dbcs_screenfont)
					debug((", (U+%04x)", alt_sum));
				else
					debug((", LCH(%d)", alt_sum));
			} else {
				debug((", ACH(%d)", keys[0]));
			}
		} else if (r > 0) {
			int r1;
			debug((", ASC("));
			for (r1 = 0; r1 < r; r1++) {
				debug(("%s%d", r1 ? "," : "", keys[r1]));
			}
			debug((")"));
		}
#endif
		if (r > 0) {
			WCHAR keybuf;

			/*
			* Interrupt an ongoing paste. I'm not sure this is
			* sensible, but for the moment it's preferable to
			* having to faff about buffering things.
			*/
			term_nopaste(term);

			p = output;
			for (i = 0; i < r; i++) {
				unsigned char ch = (unsigned char) keys[i];

				if (compose_state == 2 && (ch & 0x80) == 0 && ch > ' ') {
					compose_char = ch;
					compose_state++;
					continue;
				}
				if (compose_state == 3 && (ch & 0x80) == 0 && ch > ' ') {
					int nc;
					compose_state = 0;

					if ((nc = check_compose(compose_char, ch)) == -1) {
						MessageBeep(MB_ICONHAND);
						return 0;
					}
					keybuf = nc;
					term_seen_key_event(term);
					if (ldisc)
						luni_send(ldisc, &keybuf, 1, 1);
					continue;
				}

				compose_state = 0;

				if (!key_down) {
					if (alt_sum) {
						if (in_utf(term) || ucsdata.dbcs_screenfont) {
							keybuf = alt_sum;
							term_seen_key_event(term);
							if (ldisc)
								luni_send(ldisc, &keybuf, 1, 1);
						} else {
							ch = (char) alt_sum;
							/*
							* We need not bother about stdin
							* backlogs here, because in GUI PuTTY
							* we can't do anything about it
							* anyway; there's no means of asking
							* Windows to hold off on KEYDOWN
							* messages. We _have_ to buffer
							* everything we're sent.
							*/
							term_seen_key_event(term);
							if (ldisc)
								ldisc_send(ldisc, &ch, 1, 1);
						}
						alt_sum = 0;
					} else {
						term_seen_key_event(term);
						if (ldisc)
							lpage_send(ldisc, kbd_codepage, &ch, 1, 1);
					}
				} else {
					if(capsOn && ch < 0x80) {
						WCHAR cbuf[2];
						cbuf[0] = 27;
						cbuf[1] = xlat_uskbd2cyrllic(ch);
						term_seen_key_event(term);
						if (ldisc)
							luni_send(ldisc, cbuf+!left_alt, 1+!!left_alt, 1);
					} else {
						char cbuf[2];
						cbuf[0] = '\033';
						cbuf[1] = ch;
						term_seen_key_event(term);
						if (ldisc)
							lpage_send(ldisc, kbd_codepage,
							cbuf+!left_alt, 1+!!left_alt, 1);
					}
				}
				show_mouseptr(0);
			}

			/* This is so the ALT-Numpad and dead keys work correctly. */
			keys[0] = 0;

			return p - output;
		}
		/* If we're definitly not building up an ALT-54321 then clear it */
		if (!left_alt)
			keys[0] = 0;
		/* If we will be using alt_sum fix the 256s */
		else if (keys[0] && (in_utf(term) || ucsdata.dbcs_screenfont))
			keys[0] = 10;
	}

	/*
	* ALT alone may or may not want to bring up the System menu.
	* If it's not meant to, we return 0 on presses or releases of
	* ALT, to show that we've swallowed the keystroke. Otherwise
	* we return -1, which means Windows will give the keystroke
	* its default handling (i.e. bring up the System menu).
	*/
	if (wParam == VK_MENU && !cfg.alt_only)
		return 0;

	return -1;
}

void request_paste(void *frontend)
{
	/*
	* In Windows, pasting is synchronous: we can read the
	* clipboard with no difficulty, so request_paste() can just go
	* ahead and paste.
	*/
	term_do_paste(term);
}

void set_title(void *frontend, char *title)
{
	sfree(window_name);
	window_name = snewn(1 + strlen(title), char);
	strcpy(window_name, title);
	if (cfg.win_name_always || !IsIconic(hwnd))
		SetWindowText(hwnd, title);
}

void set_icon(void *frontend, char *title)
{
	sfree(icon_name);
	icon_name = snewn(1 + strlen(title), char);
	strcpy(icon_name, title);
	if (!cfg.win_name_always && IsIconic(hwnd))
		SetWindowText(hwnd, title);
}

void set_sbar(void *frontend, int total, int start, int page)
{
	SCROLLINFO si;

	if (is_full_screen() ? !cfg.scrollbar_in_fullscreen : !cfg.scrollbar)
		return;

	si.cbSize = sizeof(si);
	si.fMask = SIF_ALL | SIF_DISABLENOSCROLL;
	si.nMin = 0;
	si.nMax = total - 1;
	si.nPage = page;
	si.nPos = start;
	if (hwnd)
		SetScrollInfo(hwnd, SB_VERT, &si, TRUE);
}

Context get_ctx(void *frontend)
{
	HDC hdc;
	if (hwnd) {
		hdc = GetDC(hwnd);
		if (hdc && pal)
			SelectPalette(hdc, pal, FALSE);
		return hdc;
	} else
		return NULL;
}

void free_ctx(Context ctx)
{
	SelectPalette(ctx, GetStockObject(DEFAULT_PALETTE), FALSE);
	ReleaseDC(hwnd, ctx);
}

static void real_palette_set(int n, int r, int g, int b)
{
	if (pal) {
		logpal->palPalEntry[n].peRed = r;
		logpal->palPalEntry[n].peGreen = g;
		logpal->palPalEntry[n].peBlue = b;
		logpal->palPalEntry[n].peFlags = PC_NOCOLLAPSE;
		colours[n] = PALETTERGB(r, g, b);
		SetPaletteEntries(pal, 0, NALLCOLOURS, logpal->palPalEntry);
	} else
		colours[n] = RGB(r, g, b);
}

void palette_set(void *frontend, int n, int r, int g, int b)
{
	if (n >= 16)
		n += 256 - 16;
	if (n > NALLCOLOURS)
		return;
	real_palette_set(n, r, g, b);
	if (pal) {
		HDC hdc = get_ctx(frontend);
		UnrealizeObject(pal);
		RealizePalette(hdc);
		free_ctx(hdc);
	} else {
		if (n == (ATTR_DEFBG>>ATTR_BGSHIFT))
			/* If Default Background changes, we need to ensure any
			* space between the text area and the window border is
			* redrawn. */
			InvalidateRect(hwnd, NULL, TRUE);
	}
}

void palette_reset(void *frontend)
{
	int i;

	/* And this */
	for (i = 0; i < NALLCOLOURS; i++) {
		if (pal) {
			logpal->palPalEntry[i].peRed = defpal[i].rgbtRed;
			logpal->palPalEntry[i].peGreen = defpal[i].rgbtGreen;
			logpal->palPalEntry[i].peBlue = defpal[i].rgbtBlue;
			logpal->palPalEntry[i].peFlags = 0;
			colours[i] = PALETTERGB(defpal[i].rgbtRed,
				defpal[i].rgbtGreen,
				defpal[i].rgbtBlue);
		} else
			colours[i] = RGB(defpal[i].rgbtRed,
			defpal[i].rgbtGreen, defpal[i].rgbtBlue);
	}

	if (pal) {
		HDC hdc;
		SetPaletteEntries(pal, 0, NALLCOLOURS, logpal->palPalEntry);
		hdc = get_ctx(frontend);
		RealizePalette(hdc);
		free_ctx(hdc);
	} else {
		/* Default Background may have changed. Ensure any space between
		* text area and window border is redrawn. */
		InvalidateRect(hwnd, NULL, TRUE);
	}
}

void write_aclip(void *frontend, char *data, int len, int must_deselect)
{
	HGLOBAL clipdata;
	void *lock;

	clipdata = GlobalAlloc(GMEM_DDESHARE | GMEM_MOVEABLE, len + 1);
	if (!clipdata)
		return;
	lock = GlobalLock(clipdata);
	if (!lock)
		return;
	memcpy(lock, data, len);
	((unsigned char *) lock)[len] = 0;
	GlobalUnlock(clipdata);

	if (!must_deselect)
		SendMessage(hwnd, WM_IGNORE_CLIP, TRUE, 0);

	if (OpenClipboard(hwnd)) {
		EmptyClipboard();
		SetClipboardData(CF_TEXT, clipdata);
		CloseClipboard();
	} else
		GlobalFree(clipdata);

	if (!must_deselect)
		SendMessage(hwnd, WM_IGNORE_CLIP, FALSE, 0);
}

/*
* Note: unlike write_aclip() this will not append a nul.
*/
void write_clip(void *frontend, wchar_t * data, int *attr, int len, int must_deselect)
{
	HGLOBAL clipdata, clipdata2, clipdata3;
	int len2;
	void *lock, *lock2, *lock3;

	len2 = WideCharToMultiByte(CP_ACP, 0, data, len, 0, 0, NULL, NULL);

	clipdata = GlobalAlloc(GMEM_DDESHARE | GMEM_MOVEABLE,
		len * sizeof(wchar_t));
	clipdata2 = GlobalAlloc(GMEM_DDESHARE | GMEM_MOVEABLE, len2);

	if (!clipdata || !clipdata2) {
		if (clipdata)
			GlobalFree(clipdata);
		if (clipdata2)
			GlobalFree(clipdata2);
		return;
	}
	if (!(lock = GlobalLock(clipdata)))
		return;
	if (!(lock2 = GlobalLock(clipdata2)))
		return;

	memcpy(lock, data, len * sizeof(wchar_t));
	WideCharToMultiByte(CP_ACP, 0, data, len, lock2, len2, NULL, NULL);

	if (cfg.rtf_paste) {
		wchar_t unitab[256];
		char *rtf = NULL;
		unsigned char *tdata = (unsigned char *)lock2;
		wchar_t *udata = (wchar_t *)lock;
		int rtflen = 0, uindex = 0, tindex = 0;
		int rtfsize = 0;
		int multilen, blen, alen, totallen, i;
		char before[16], after[4];
		int fgcolour,  lastfgcolour  = 0;
		int bgcolour,  lastbgcolour  = 0;
		int attrBold,  lastAttrBold  = 0;
		int attrUnder, lastAttrUnder = 0;
		int palette[NALLCOLOURS];
		int numcolours;

		get_unitab(CP_ACP, unitab, 0);

		rtfsize = 100 + strlen(cfg.font.name);
		rtf = snewn(rtfsize, char);
		rtflen = sprintf(rtf, "{\\rtf1\\ansi\\deff0{\\fonttbl\\f0\\fmodern %s;}\\f0\\fs%d",
			cfg.font.name, cfg.font.height*2);

		/*
		* Add colour palette
		* {\colortbl ;\red255\green0\blue0;\red0\green0\blue128;}
		*/

		/*
		* First - Determine all colours in use
		*    o  Foregound and background colours share the same palette
		*/
		if (attr) {
			memset(palette, 0, sizeof(palette));
			for (i = 0; i < (len-1); i++) {
				fgcolour = ((attr[i] & ATTR_FGMASK) >> ATTR_FGSHIFT);
				bgcolour = ((attr[i] & ATTR_BGMASK) >> ATTR_BGSHIFT);

				if (attr[i] & ATTR_REVERSE) {
					int tmpcolour = fgcolour;	/* Swap foreground and background */
					fgcolour = bgcolour;
					bgcolour = tmpcolour;
				}

				if (bold_mode == BOLD_COLOURS && (attr[i] & ATTR_BOLD)) {
					if (fgcolour  <   8)	/* ANSI colours */
						fgcolour +=   8;
					else if (fgcolour >= 256)	/* Default colours */
						fgcolour ++;
				}

				if (attr[i] & ATTR_BLINK) {
					if (bgcolour  <   8)	/* ANSI colours */
						bgcolour +=   8;
					else if (bgcolour >= 256)	/* Default colours */
						bgcolour ++;
				}

				palette[fgcolour]++;
				palette[bgcolour]++;
			}

			/*
			* Next - Create a reduced palette
			*/
			numcolours = 0;
			for (i = 0; i < NALLCOLOURS; i++) {
				if (palette[i] != 0)
					palette[i]  = ++numcolours;
			}

			/*
			* Finally - Write the colour table
			*/
			rtf = sresize(rtf, rtfsize + (numcolours * 25), char);
			strcat(rtf, "{\\colortbl ;");
			rtflen = strlen(rtf);

			for (i = 0; i < NALLCOLOURS; i++) {
				if (palette[i] != 0) {
					rtflen += sprintf(&rtf[rtflen], "\\red%d\\green%d\\blue%d;", defpal[i].rgbtRed, defpal[i].rgbtGreen, defpal[i].rgbtBlue);
				}
			}
			strcpy(&rtf[rtflen], "}");
			rtflen ++;
		}

		/*
		* We want to construct a piece of RTF that specifies the
		* same Unicode text. To do this we will read back in
		* parallel from the Unicode data in `udata' and the
		* non-Unicode data in `tdata'. For each character in
		* `tdata' which becomes the right thing in `udata' when
		* looked up in `unitab', we just copy straight over from
		* tdata. For each one that doesn't, we must WCToMB it
		* individually and produce a \u escape sequence.
		* 
		* It would probably be more robust to just bite the bullet
		* and WCToMB each individual Unicode character one by one,
		* then MBToWC each one back to see if it was an accurate
		* translation; but that strikes me as a horrifying number
		* of Windows API calls so I want to see if this faster way
		* will work. If it screws up badly we can always revert to
		* the simple and slow way.
		*/
		while (tindex < len2 && uindex < len &&
			tdata[tindex] && udata[uindex]) {
				if (tindex + 1 < len2 &&
					tdata[tindex] == '\r' &&
					tdata[tindex+1] == '\n') {
						tindex++;
						uindex++;
				}

				/*
				* Set text attributes
				*/
				if (attr) {
					if (rtfsize < rtflen + 64) {
						rtfsize = rtflen + 512;
						rtf = sresize(rtf, rtfsize, char);
					}

					/*
					* Determine foreground and background colours
					*/
					fgcolour = ((attr[tindex] & ATTR_FGMASK) >> ATTR_FGSHIFT);
					bgcolour = ((attr[tindex] & ATTR_BGMASK) >> ATTR_BGSHIFT);

					if (attr[tindex] & ATTR_REVERSE) {
						int tmpcolour = fgcolour;	    /* Swap foreground and background */
						fgcolour = bgcolour;
						bgcolour = tmpcolour;
					}

					if (bold_mode == BOLD_COLOURS && (attr[tindex] & ATTR_BOLD)) {
						if (fgcolour  <   8)	    /* ANSI colours */
							fgcolour +=   8;
						else if (fgcolour >= 256)	    /* Default colours */
							fgcolour ++;
					}

					if (attr[tindex] & ATTR_BLINK) {
						if (bgcolour  <   8)	    /* ANSI colours */
							bgcolour +=   8;
						else if (bgcolour >= 256)	    /* Default colours */
							bgcolour ++;
					}

					/*
					* Collect other attributes
					*/
					if (bold_mode != BOLD_COLOURS)
						attrBold  = attr[tindex] & ATTR_BOLD;
					else
						attrBold  = 0;

					attrUnder = attr[tindex] & ATTR_UNDER;

					/*
					* Reverse video
					*   o  If video isn't reversed, ignore colour attributes for default foregound
					*	or background.
					*   o  Special case where bolded text is displayed using the default foregound
					*      and background colours - force to bolded RTF.
					*/
					if (!(attr[tindex] & ATTR_REVERSE)) {
						if (bgcolour >= 256)	    /* Default color */
							bgcolour  = -1;		    /* No coloring */

						if (fgcolour >= 256) {	    /* Default colour */
							if (bold_mode == BOLD_COLOURS && (fgcolour & 1) && bgcolour == -1)
								attrBold = ATTR_BOLD;   /* Emphasize text with bold attribute */

							fgcolour  = -1;		    /* No coloring */
						}
					}

					/*
					* Write RTF text attributes
					*/
					if (lastfgcolour != fgcolour) {
						lastfgcolour  = fgcolour;
						rtflen       += sprintf(&rtf[rtflen], "\\cf%d ", (fgcolour >= 0) ? palette[fgcolour] : 0);
					}

					if (lastbgcolour != bgcolour) {
						lastbgcolour  = bgcolour;
						rtflen       += sprintf(&rtf[rtflen], "\\highlight%d ", (bgcolour >= 0) ? palette[bgcolour] : 0);
					}

					if (lastAttrBold != attrBold) {
						lastAttrBold  = attrBold;
						rtflen       += sprintf(&rtf[rtflen], "%s", attrBold ? "\\b " : "\\b0 ");
					}

					if (lastAttrUnder != attrUnder) {
						lastAttrUnder  = attrUnder;
						rtflen        += sprintf(&rtf[rtflen], "%s", attrUnder ? "\\ul " : "\\ulnone ");
					}
				}

				if (unitab[tdata[tindex]] == udata[uindex]) {
					multilen = 1;
					before[0] = '\0';
					after[0] = '\0';
					blen = alen = 0;
				} else {
					multilen = WideCharToMultiByte(CP_ACP, 0, unitab+uindex, 1,
						NULL, 0, NULL, NULL);
					if (multilen != 1) {
						blen = sprintf(before, "{\\uc%d\\u%d", multilen,
							udata[uindex]);
						alen = 1; strcpy(after, "}");
					} else {
						blen = sprintf(before, "\\u%d", udata[uindex]);
						alen = 0; after[0] = '\0';
					}
				}
				assert(tindex + multilen <= len2);
				totallen = blen + alen;
				for (i = 0; i < multilen; i++) {
					if (tdata[tindex+i] == '\\' ||
						tdata[tindex+i] == '{' ||
						tdata[tindex+i] == '}')
						totallen += 2;
					else if (tdata[tindex+i] == 0x0D || tdata[tindex+i] == 0x0A)
						totallen += 6;     /* \par\r\n */
					else if (tdata[tindex+i] > 0x7E || tdata[tindex+i] < 0x20)
						totallen += 4;
					else
						totallen++;
				}

				if (rtfsize < rtflen + totallen + 3) {
					rtfsize = rtflen + totallen + 512;
					rtf = sresize(rtf, rtfsize, char);
				}

				strcpy(rtf + rtflen, before); rtflen += blen;
				for (i = 0; i < multilen; i++) {
					if (tdata[tindex+i] == '\\' ||
						tdata[tindex+i] == '{' ||
						tdata[tindex+i] == '}') {
							rtf[rtflen++] = '\\';
							rtf[rtflen++] = tdata[tindex+i];
					} else if (tdata[tindex+i] == 0x0D || tdata[tindex+i] == 0x0A) {
						rtflen += sprintf(rtf+rtflen, "\\par\r\n");
					} else if (tdata[tindex+i] > 0x7E || tdata[tindex+i] < 0x20) {
						rtflen += sprintf(rtf+rtflen, "\\'%02x", tdata[tindex+i]);
					} else {
						rtf[rtflen++] = tdata[tindex+i];
					}
				}
				strcpy(rtf + rtflen, after); rtflen += alen;

				tindex += multilen;
				uindex++;
		}

		rtf[rtflen++] = '}';	       /* Terminate RTF stream */
		rtf[rtflen++] = '\0';
		rtf[rtflen++] = '\0';

		clipdata3 = GlobalAlloc(GMEM_DDESHARE | GMEM_MOVEABLE, rtflen);
		if (clipdata3 && (lock3 = GlobalLock(clipdata3)) != NULL) {
			memcpy(lock3, rtf, rtflen);
			GlobalUnlock(clipdata3);
		}
		sfree(rtf);
	} else
		clipdata3 = NULL;

	GlobalUnlock(clipdata);
	GlobalUnlock(clipdata2);

	if (!must_deselect)
		SendMessage(hwnd, WM_IGNORE_CLIP, TRUE, 0);

	if (OpenClipboard(hwnd)) {
		EmptyClipboard();
		SetClipboardData(CF_UNICODETEXT, clipdata);
		SetClipboardData(CF_TEXT, clipdata2);
		if (clipdata3)
			SetClipboardData(RegisterClipboardFormat(CF_RTF), clipdata3);
		CloseClipboard();
	} else {
		GlobalFree(clipdata);
		GlobalFree(clipdata2);
	}

	if (!must_deselect)
		SendMessage(hwnd, WM_IGNORE_CLIP, FALSE, 0);
}

void get_clip(void *frontend, wchar_t ** p, int *len)
{
	static HGLOBAL clipdata = NULL;
	static wchar_t *converted = 0;
	wchar_t *p2;

	if (converted) {
		sfree(converted);
		converted = 0;
	}
	if (!p) {
		if (clipdata)
			GlobalUnlock(clipdata);
		clipdata = NULL;
		return;
	} else if (OpenClipboard(NULL)) {
		if ((clipdata = GetClipboardData(CF_UNICODETEXT))) {
			CloseClipboard();
			*p = GlobalLock(clipdata);
			if (*p) {
				for (p2 = *p; *p2; p2++);
				*len = p2 - *p;
				return;
			}
		} else if ( (clipdata = GetClipboardData(CF_TEXT)) ) {
			char *s;
			int i;
			CloseClipboard();
			s = GlobalLock(clipdata);
			i = MultiByteToWideChar(CP_ACP, 0, s, strlen(s) + 1, 0, 0);
			*p = converted = snewn(i, wchar_t);
			MultiByteToWideChar(CP_ACP, 0, s, strlen(s) + 1, converted, i);
			*len = i - 1;
			return;
		} else
			CloseClipboard();
	}

	*p = NULL;
	*len = 0;
}

#if 0
/*
* Move `lines' lines from position `from' to position `to' in the
* window.
*/
void optimised_move(void *frontend, int to, int from, int lines)
{
	RECT r;
	int min, max;

	min = (to < from ? to : from);
	max = to + from - min;

	r.left = offset_width;
	r.right = offset_width + term->cols * font_width;
	r.top = offset_height + min * font_height;
	r.bottom = offset_height + (max + lines) * font_height;
	ScrollWindow(hwnd, 0, (to - from) * font_height, &r, &r);
}
#endif

/*
* Print a message box and perform a fatal exit.
*/
void fatalbox(char *fmt, ...)
{
	va_list ap;
	char *stuff, morestuff[100];

	va_start(ap, fmt);
	stuff = dupvprintf(fmt, ap);
	va_end(ap);
	sprintf(morestuff, "%.70s Fatal Error", appname);
	MessageBox(hwnd, stuff, morestuff, MB_ICONERROR | MB_OK);
	sfree(stuff);
	cleanup_exit(1);
}

/*
* Print a modal (Really Bad) message box and perform a fatal exit.
*/
void modalfatalbox(char *fmt, ...)
{
	va_list ap;
	char *stuff, morestuff[100];

	va_start(ap, fmt);
	stuff = dupvprintf(fmt, ap);
	va_end(ap);
	sprintf(morestuff, "%.70s Fatal Error", appname);
	MessageBox(hwnd, stuff, morestuff,
		MB_SYSTEMMODAL | MB_ICONERROR | MB_OK);
	sfree(stuff);
	cleanup_exit(1);
}

typedef BOOL (WINAPI *p_FlashWindowEx_t)(PFLASHWINFO);
static p_FlashWindowEx_t p_FlashWindowEx = NULL;

static void init_flashwindow(void)
{
	HMODULE user32_module = LoadLibrary("USER32.DLL");
	if (user32_module) {
		p_FlashWindowEx = (p_FlashWindowEx_t)
			GetProcAddress(user32_module, "FlashWindowEx");
	}
}

static BOOL flash_window_ex(DWORD dwFlags, UINT uCount, DWORD dwTimeout)
{
	if (p_FlashWindowEx) {
		FLASHWINFO fi;
		fi.cbSize = sizeof(fi);
		fi.hwnd = hwnd;
		fi.dwFlags = dwFlags;
		fi.uCount = uCount;
		fi.dwTimeout = dwTimeout;
		return (*p_FlashWindowEx)(&fi);
	}
	else
		return FALSE; /* shrug */
}

static void flash_window(int mode);
static long next_flash;
static int flashing = 0;

/*
* Timer for platforms where we must maintain window flashing manually
* (e.g., Win95).
*/
static void flash_window_timer(void *ctx, long now)
{
	if (flashing && now - next_flash >= 0) {
		flash_window(1);
	}
}

/*
* Manage window caption / taskbar flashing, if enabled.
* 0 = stop, 1 = maintain, 2 = start
*/
static void flash_window(int mode)
{
	if ((mode == 0) || (cfg.beep_ind == B_IND_DISABLED)) {
		/* stop */
		if (flashing) {
			flashing = 0;
			if (p_FlashWindowEx)
				flash_window_ex(FLASHW_STOP, 0, 0);
			else
				FlashWindow(hwnd, FALSE);
		}

	} else if (mode == 2) {
		/* start */
		if (!flashing) {
			flashing = 1;
			if (p_FlashWindowEx) {
				/* For so-called "steady" mode, we use uCount=2, which
				* seems to be the traditional number of flashes used
				* by user notifications (e.g., by Explorer).
				* uCount=0 appears to enable continuous flashing, per
				* "flashing" mode, although I haven't seen this
				* documented. */
				flash_window_ex(FLASHW_ALL | FLASHW_TIMER,
					(cfg.beep_ind == B_IND_FLASH ? 0 : 2),
					0 /* system cursor blink rate */);
				/* No need to schedule timer */
			} else {
				FlashWindow(hwnd, TRUE);
				next_flash = schedule_timer(450, flash_window_timer, hwnd);
			}
		}

	} else if ((mode == 1) && (cfg.beep_ind == B_IND_FLASH)) {
		/* maintain */
		if (flashing && !p_FlashWindowEx) {
			FlashWindow(hwnd, TRUE);	/* toggle */
			next_flash = schedule_timer(450, flash_window_timer, hwnd);
		}
	}
}

/*
* Beep.
*/
void do_beep(void *frontend, int mode)
{
	if (mode == BELL_DEFAULT) {
		/*
		* For MessageBeep style bells, we want to be careful of
		* timing, because they don't have the nice property of
		* PlaySound bells that each one cancels the previous
		* active one. So we limit the rate to one per 50ms or so.
		*/
		static long lastbeep = 0;
		long beepdiff;

		beepdiff = GetTickCount() - lastbeep;
		if (beepdiff >= 0 && beepdiff < 50)
			return;
		MessageBeep(MB_OK);
		/*
		* The above MessageBeep call takes time, so we record the
		* time _after_ it finishes rather than before it starts.
		*/
		lastbeep = GetTickCount();
	} else if (mode == BELL_WAVEFILE) {
		if (!PlaySound(cfg.bell_wavefile.path, NULL,
			SND_ASYNC | SND_FILENAME)) {
				char buf[sizeof(cfg.bell_wavefile.path) + 80];
				char otherbuf[100];
				sprintf(buf, "Unable to play sound file\n%s\n"
					"Using default sound instead", cfg.bell_wavefile.path);
				sprintf(otherbuf, "%.70s Sound Error", appname);
				MessageBox(hwnd, buf, otherbuf,
					MB_OK | MB_ICONEXCLAMATION);
				cfg.beep = BELL_DEFAULT;
		}
	} else if (mode == BELL_PCSPEAKER) {
		static long lastbeep = 0;
		long beepdiff;

		beepdiff = GetTickCount() - lastbeep;
		if (beepdiff >= 0 && beepdiff < 50)
			return;

		/*
		* We must beep in different ways depending on whether this
		* is a 95-series or NT-series OS.
		*/
		if(osVersion.dwPlatformId == VER_PLATFORM_WIN32_NT)
			Beep(800, 100);
		else
			MessageBeep(-1);
		lastbeep = GetTickCount();
	}
	/* Otherwise, either visual bell or disabled; do nothing here */
	if (!term->has_focus) {
		flash_window(2);	       /* start */
	}
}

/*
* Minimise or restore the window in response to a server-side
* request.
*/
void set_iconic(void *frontend, int iconic)
{
	if (IsIconic(hwnd)) {
		if (!iconic)
			ShowWindow(hwnd, SW_RESTORE);
	} else {
		if (iconic)
			ShowWindow(hwnd, SW_MINIMIZE);
	}
}

/*
* Move the window in response to a server-side request.
*/
void move_window(void *frontend, int x, int y)
{
	if (cfg.resize_action == RESIZE_DISABLED || 
		cfg.resize_action == RESIZE_FONT ||
		IsZoomed(hwnd))
		return;

	SetWindowPos(hwnd, NULL, x, y, 0, 0, SWP_NOSIZE | SWP_NOZORDER);
}

/*
* Move the window to the top or bottom of the z-order in response
* to a server-side request.
*/
void set_zorder(void *frontend, int top)
{
	if (cfg.alwaysontop)
		return;			       /* ignore */
	SetWindowPos(hwnd, top ? HWND_TOP : HWND_BOTTOM, 0, 0, 0, 0,
		SWP_NOMOVE | SWP_NOSIZE);
}

/*
* Refresh the window in response to a server-side request.
*/
void refresh_window(void *frontend)
{
	InvalidateRect(hwnd, NULL, TRUE);
}

/*
* Maximise or restore the window in response to a server-side
* request.
*/
void set_zoomed(void *frontend, int zoomed)
{
	if (IsZoomed(hwnd)) {
		if (!zoomed)
			ShowWindow(hwnd, SW_RESTORE);
	} else {
		if (zoomed)
			ShowWindow(hwnd, SW_MAXIMIZE);
	}
}

/*
* Report whether the window is iconic, for terminal reports.
*/
int is_iconic(void *frontend)
{
	return IsIconic(hwnd);
}

/*
* Report the window's position, for terminal reports.
*/
void get_window_pos(void *frontend, int *x, int *y)
{
	RECT r;
	GetWindowRect(hwnd, &r);
	*x = r.left;
	*y = r.top;
}

/*
* Report the window's pixel size, for terminal reports.
*/
void get_window_pixels(void *frontend, int *x, int *y)
{
	RECT r;
	GetWindowRect(hwnd, &r);
	*x = r.right - r.left;
	*y = r.bottom - r.top;
}

/*
* Return the window or icon title.
*/
char *get_window_title(void *frontend, int icon)
{
	return icon ? icon_name : window_name;
}

/*
* See if we're in full-screen mode.
*/
static int is_full_screen()
{
	if (!IsZoomed(hwnd))
		return FALSE;
	if (GetWindowLongPtr(hwnd, GWL_STYLE) & WS_CAPTION)
		return FALSE;
	return TRUE;
}

/* Get the rect/size of a full screen window using the nearest available
* monitor in multimon systems; default to something sensible if only
* one monitor is present. */
static int get_fullscreen_rect(RECT * ss)
{
#if defined(MONITOR_DEFAULTTONEAREST) && !defined(NO_MULTIMON)
	HMONITOR mon;
	MONITORINFO mi;
	mon = MonitorFromWindow(hwnd, MONITOR_DEFAULTTONEAREST);
	mi.cbSize = sizeof(mi);
	GetMonitorInfo(mon, &mi);

	/* structure copy */
	*ss = mi.rcMonitor;
	return TRUE;
#else
	/* could also use code like this:
	ss->left = ss->top = 0;
	ss->right = GetSystemMetrics(SM_CXSCREEN);
	ss->bottom = GetSystemMetrics(SM_CYSCREEN);
	*/ 
	return GetClientRect(GetDesktopWindow(), ss);
#endif
}


/*
* Go full-screen. This should only be called when we are already
* maximised.
*/
static void make_full_screen()
{
	DWORD style;
	RECT ss;

	assert(IsZoomed(hwnd));

	if (is_full_screen())
		return;

	/* Remove the window furniture. */
	style = GetWindowLongPtr(hwnd, GWL_STYLE);
	style &= ~(WS_CAPTION | WS_BORDER | WS_THICKFRAME);
	if (cfg.scrollbar_in_fullscreen)
		style |= WS_VSCROLL;
	else
		style &= ~WS_VSCROLL;
	SetWindowLongPtr(hwnd, GWL_STYLE, style);

	/* Resize ourselves to exactly cover the nearest monitor. */
	get_fullscreen_rect(&ss);
	SetWindowPos(hwnd, HWND_TOP, ss.left, ss.top,
		ss.right - ss.left,
		ss.bottom - ss.top,
		SWP_FRAMECHANGED);

	/* We may have changed size as a result */

	reset_window(0);

	/* Tick the menu item in the System menu. */
	CheckMenuItem(GetSystemMenu(hwnd, FALSE), IDM_FULLSCREEN,
		MF_CHECKED);
}

/*
* Clear the full-screen attributes.
*/
static void clear_full_screen()
{
	DWORD oldstyle, style;

	/* Reinstate the window furniture. */
	style = oldstyle = GetWindowLongPtr(hwnd, GWL_STYLE);
	style |= WS_CAPTION | WS_BORDER;
	if (cfg.resize_action == RESIZE_DISABLED)
		style &= ~WS_THICKFRAME;
	else
		style |= WS_THICKFRAME;
	if (cfg.scrollbar)
		style |= WS_VSCROLL;
	else
		style &= ~WS_VSCROLL;
	if (style != oldstyle) {
		SetWindowLongPtr(hwnd, GWL_STYLE, style);
		SetWindowPos(hwnd, NULL, 0, 0, 0, 0,
			SWP_NOMOVE | SWP_NOSIZE | SWP_NOZORDER |
			SWP_FRAMECHANGED);
	}

	/* Untick the menu item in the System menu. */
	CheckMenuItem(GetSystemMenu(hwnd, FALSE), IDM_FULLSCREEN,
		MF_UNCHECKED);
}

/*
* Toggle full-screen mode.
*/
static void flip_full_screen()
{
	if (is_full_screen()) {
		ShowWindow(hwnd, SW_RESTORE);
	} else if (IsZoomed(hwnd)) {
		make_full_screen();
	} else {
		SendMessage(hwnd, WM_FULLSCR_ON_MAX, 0, 0);
		ShowWindow(hwnd, SW_MAXIMIZE);
	}
}

void frontend_keypress(void *handle)
{
	/*
	* Keypress termination in non-Close-On-Exit mode is not
	* currently supported in PuTTY proper, because the window
	* always has a perfectly good Close button anyway. So we do
	* nothing here.
	*/
	return;
}

int from_backend(void *frontend, int is_stderr, const char *data, int len)
{
	return term_data(term, is_stderr, data, len);
}

int from_backend_untrusted(void *frontend, const char *data, int len)
{
	return term_data_untrusted(term, data, len);
}

int get_userpass_input(prompts_t *p, unsigned char *in, int inlen)
{
	int ret;
	ret = cmdline_get_passwd_input(p, in, inlen);
	if (ret == -1)
		ret = term_get_userpass_input(term, p, in, inlen);
	return ret;
}

void agent_schedule_callback(void (*callback)(void *, void *, int),
							 void *callback_ctx, void *data, int len)
{
	struct agent_callback *c = snew(struct agent_callback);
	c->callback = callback;
	c->callback_ctx = callback_ctx;
	c->data = data;
	c->len = len;
	PostMessage(hwnd, WM_AGENT_CALLBACK, 0, (LPARAM)c);
}
